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CNGS operation in 2007 amp 2008 Shutdown activities
I Efthymiopoulos ndashAB Dept(for the CNGS team)
Special thanks E Gshwendtner and to all colleagues for their efforts during the 2007 run and for providing slides for this presentation
SPSC MeetingCERN ndash December 4 2007
OutlineOutlineThe (short) physics run in 2007
Radiation issues on installed electronics
Status ndash activities foreseen for 2008 shutdown
ie-SPSC-04Dec07 ABATB-EA - CNGS 2
Restart with beam in 2007
Shutdown 2007 highlightsShutdown 2007 highlightsHornreflector cooling circuit repair effortReflector stripline cable repair
Beam was resumed as scheduled for a 3‐week commissioning run followed by a 3‐week physics run
ie-SPSC-04Dec07 ABATB-EA - CNGS 3
Operations in 2007 - Commissioning
2 Oct 07 184E13 pot
(max 2006 177E13 pot)
24 hr run
184 E13 potextr
2 E12 potextrMD (+strip‐line cable)
Setting‐up of secondary beam
‐ Alignment beam vs target vs horn
‐ Calibration of TBID
‐ Study of neutrinoanti‐neutrino profiles‐Setting up of SC‐Interlock tests‐hornreflector test
Time
po
tex
tr
Total ~5E16 pot
Studies with beam performed Better understanding of the beam line
response of the second muon pit detectors during the high intensity periods
Report given by E Gschwendtner (CNGS Beam Physicist) at the previous SPSC meeting
ie-SPSC-04Dec07 ABATB-EA - CNGS 4
Operations in 2007 - Physics Run
63E17 pot 84E16 pot72E16 pot
Total 79 E17 pot
Modifications in CV control electronics
20 E13 potextr
First brick event in OPERA
ie-SPSC-04Dec07 ABATB-EA - CNGS 5
Operations in 2007
Smooth startup and very good beam performance during the commissioning and the short physics run
38 OPERA events in bricksgt 400 events from interactions outside OPERA detector
After successive failures in the ventilation system and despite the efforts made by the TSCV team to save the situation the physics run was stopped on Monday October 22nd five days ahead of schedule
The failures in the ventilation system control electronics due to radiation prevented switching to access mode in a safe manner This is intolerable for an INB facility thus it was decided to stop the beam
Radiation issues on CNGS electronics
What happened
Radiation maps (updated in 2007)
Actions and plans for 2008 shutdown
ie-SPSC-04Dec07 ABATB-EA - CNGS 7
Layout ndash underground tunnels
Areas designated as ldquoradiation-saferdquo for
electronics
ie-SPSC-04Dec07 ABATB-EA - CNGS 8
Layout ndash electronics locations
TSG4 Electronics for
AB IT TShellip
Ventilation Units
TCV4 Electronics
for CV cranefire detection
M Sentis et al CERN-OPEN-2006-09-05
ie-SPSC-04Dec07 ABATB-EA - CNGS 9
Installed ventilation equipment
Unit 231
Ventilation duct
Service Gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 10
Installed ventilation equipment
Unit 232
TSG44
ie-SPSC-04Dec07 ABATB-EA - CNGS 11
Installed ventilation equipment
Balcony TCV4
ie-SPSC-04Dec07 ABATB-EA - CNGS 12
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 13
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 14
FLUKA Simulation - radiation field
Total dose in Gyy for a nominal CNGS year with 45E19 pot
AF
erra
ri e
t al
20
07
Absorbed Dose Gy per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10-4
10-3
10-2
10-1
1
10
10 2
10 3
10 4
10 5
10 6
Z(cm)
X(c
m)
~01 ndash 10 Gyy
ie-SPSC-04Dec07 ABATB-EA - CNGS 15
FLUKA Simulation - radiation field1 MeV neutron equivalent fluence cm-2 per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e9‐10e11
AF
erra
ri e
t al
20
07
1 MeV eq neutron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45 E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 2
Restart with beam in 2007
Shutdown 2007 highlightsShutdown 2007 highlightsHornreflector cooling circuit repair effortReflector stripline cable repair
Beam was resumed as scheduled for a 3‐week commissioning run followed by a 3‐week physics run
ie-SPSC-04Dec07 ABATB-EA - CNGS 3
Operations in 2007 - Commissioning
2 Oct 07 184E13 pot
(max 2006 177E13 pot)
24 hr run
184 E13 potextr
2 E12 potextrMD (+strip‐line cable)
Setting‐up of secondary beam
‐ Alignment beam vs target vs horn
‐ Calibration of TBID
‐ Study of neutrinoanti‐neutrino profiles‐Setting up of SC‐Interlock tests‐hornreflector test
Time
po
tex
tr
Total ~5E16 pot
Studies with beam performed Better understanding of the beam line
response of the second muon pit detectors during the high intensity periods
Report given by E Gschwendtner (CNGS Beam Physicist) at the previous SPSC meeting
ie-SPSC-04Dec07 ABATB-EA - CNGS 4
Operations in 2007 - Physics Run
63E17 pot 84E16 pot72E16 pot
Total 79 E17 pot
Modifications in CV control electronics
20 E13 potextr
First brick event in OPERA
ie-SPSC-04Dec07 ABATB-EA - CNGS 5
Operations in 2007
Smooth startup and very good beam performance during the commissioning and the short physics run
38 OPERA events in bricksgt 400 events from interactions outside OPERA detector
After successive failures in the ventilation system and despite the efforts made by the TSCV team to save the situation the physics run was stopped on Monday October 22nd five days ahead of schedule
The failures in the ventilation system control electronics due to radiation prevented switching to access mode in a safe manner This is intolerable for an INB facility thus it was decided to stop the beam
Radiation issues on CNGS electronics
What happened
Radiation maps (updated in 2007)
Actions and plans for 2008 shutdown
ie-SPSC-04Dec07 ABATB-EA - CNGS 7
Layout ndash underground tunnels
Areas designated as ldquoradiation-saferdquo for
electronics
ie-SPSC-04Dec07 ABATB-EA - CNGS 8
Layout ndash electronics locations
TSG4 Electronics for
AB IT TShellip
Ventilation Units
TCV4 Electronics
for CV cranefire detection
M Sentis et al CERN-OPEN-2006-09-05
ie-SPSC-04Dec07 ABATB-EA - CNGS 9
Installed ventilation equipment
Unit 231
Ventilation duct
Service Gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 10
Installed ventilation equipment
Unit 232
TSG44
ie-SPSC-04Dec07 ABATB-EA - CNGS 11
Installed ventilation equipment
Balcony TCV4
ie-SPSC-04Dec07 ABATB-EA - CNGS 12
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 13
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 14
FLUKA Simulation - radiation field
Total dose in Gyy for a nominal CNGS year with 45E19 pot
AF
erra
ri e
t al
20
07
Absorbed Dose Gy per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10-4
10-3
10-2
10-1
1
10
10 2
10 3
10 4
10 5
10 6
Z(cm)
X(c
m)
~01 ndash 10 Gyy
ie-SPSC-04Dec07 ABATB-EA - CNGS 15
FLUKA Simulation - radiation field1 MeV neutron equivalent fluence cm-2 per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e9‐10e11
AF
erra
ri e
t al
20
07
1 MeV eq neutron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45 E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 3
Operations in 2007 - Commissioning
2 Oct 07 184E13 pot
(max 2006 177E13 pot)
24 hr run
184 E13 potextr
2 E12 potextrMD (+strip‐line cable)
Setting‐up of secondary beam
‐ Alignment beam vs target vs horn
‐ Calibration of TBID
‐ Study of neutrinoanti‐neutrino profiles‐Setting up of SC‐Interlock tests‐hornreflector test
Time
po
tex
tr
Total ~5E16 pot
Studies with beam performed Better understanding of the beam line
response of the second muon pit detectors during the high intensity periods
Report given by E Gschwendtner (CNGS Beam Physicist) at the previous SPSC meeting
ie-SPSC-04Dec07 ABATB-EA - CNGS 4
Operations in 2007 - Physics Run
63E17 pot 84E16 pot72E16 pot
Total 79 E17 pot
Modifications in CV control electronics
20 E13 potextr
First brick event in OPERA
ie-SPSC-04Dec07 ABATB-EA - CNGS 5
Operations in 2007
Smooth startup and very good beam performance during the commissioning and the short physics run
38 OPERA events in bricksgt 400 events from interactions outside OPERA detector
After successive failures in the ventilation system and despite the efforts made by the TSCV team to save the situation the physics run was stopped on Monday October 22nd five days ahead of schedule
The failures in the ventilation system control electronics due to radiation prevented switching to access mode in a safe manner This is intolerable for an INB facility thus it was decided to stop the beam
Radiation issues on CNGS electronics
What happened
Radiation maps (updated in 2007)
Actions and plans for 2008 shutdown
ie-SPSC-04Dec07 ABATB-EA - CNGS 7
Layout ndash underground tunnels
Areas designated as ldquoradiation-saferdquo for
electronics
ie-SPSC-04Dec07 ABATB-EA - CNGS 8
Layout ndash electronics locations
TSG4 Electronics for
AB IT TShellip
Ventilation Units
TCV4 Electronics
for CV cranefire detection
M Sentis et al CERN-OPEN-2006-09-05
ie-SPSC-04Dec07 ABATB-EA - CNGS 9
Installed ventilation equipment
Unit 231
Ventilation duct
Service Gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 10
Installed ventilation equipment
Unit 232
TSG44
ie-SPSC-04Dec07 ABATB-EA - CNGS 11
Installed ventilation equipment
Balcony TCV4
ie-SPSC-04Dec07 ABATB-EA - CNGS 12
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 13
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 14
FLUKA Simulation - radiation field
Total dose in Gyy for a nominal CNGS year with 45E19 pot
AF
erra
ri e
t al
20
07
Absorbed Dose Gy per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10-4
10-3
10-2
10-1
1
10
10 2
10 3
10 4
10 5
10 6
Z(cm)
X(c
m)
~01 ndash 10 Gyy
ie-SPSC-04Dec07 ABATB-EA - CNGS 15
FLUKA Simulation - radiation field1 MeV neutron equivalent fluence cm-2 per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e9‐10e11
AF
erra
ri e
t al
20
07
1 MeV eq neutron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45 E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 4
Operations in 2007 - Physics Run
63E17 pot 84E16 pot72E16 pot
Total 79 E17 pot
Modifications in CV control electronics
20 E13 potextr
First brick event in OPERA
ie-SPSC-04Dec07 ABATB-EA - CNGS 5
Operations in 2007
Smooth startup and very good beam performance during the commissioning and the short physics run
38 OPERA events in bricksgt 400 events from interactions outside OPERA detector
After successive failures in the ventilation system and despite the efforts made by the TSCV team to save the situation the physics run was stopped on Monday October 22nd five days ahead of schedule
The failures in the ventilation system control electronics due to radiation prevented switching to access mode in a safe manner This is intolerable for an INB facility thus it was decided to stop the beam
Radiation issues on CNGS electronics
What happened
Radiation maps (updated in 2007)
Actions and plans for 2008 shutdown
ie-SPSC-04Dec07 ABATB-EA - CNGS 7
Layout ndash underground tunnels
Areas designated as ldquoradiation-saferdquo for
electronics
ie-SPSC-04Dec07 ABATB-EA - CNGS 8
Layout ndash electronics locations
TSG4 Electronics for
AB IT TShellip
Ventilation Units
TCV4 Electronics
for CV cranefire detection
M Sentis et al CERN-OPEN-2006-09-05
ie-SPSC-04Dec07 ABATB-EA - CNGS 9
Installed ventilation equipment
Unit 231
Ventilation duct
Service Gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 10
Installed ventilation equipment
Unit 232
TSG44
ie-SPSC-04Dec07 ABATB-EA - CNGS 11
Installed ventilation equipment
Balcony TCV4
ie-SPSC-04Dec07 ABATB-EA - CNGS 12
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 13
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 14
FLUKA Simulation - radiation field
Total dose in Gyy for a nominal CNGS year with 45E19 pot
AF
erra
ri e
t al
20
07
Absorbed Dose Gy per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10-4
10-3
10-2
10-1
1
10
10 2
10 3
10 4
10 5
10 6
Z(cm)
X(c
m)
~01 ndash 10 Gyy
ie-SPSC-04Dec07 ABATB-EA - CNGS 15
FLUKA Simulation - radiation field1 MeV neutron equivalent fluence cm-2 per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e9‐10e11
AF
erra
ri e
t al
20
07
1 MeV eq neutron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45 E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 5
Operations in 2007
Smooth startup and very good beam performance during the commissioning and the short physics run
38 OPERA events in bricksgt 400 events from interactions outside OPERA detector
After successive failures in the ventilation system and despite the efforts made by the TSCV team to save the situation the physics run was stopped on Monday October 22nd five days ahead of schedule
The failures in the ventilation system control electronics due to radiation prevented switching to access mode in a safe manner This is intolerable for an INB facility thus it was decided to stop the beam
Radiation issues on CNGS electronics
What happened
Radiation maps (updated in 2007)
Actions and plans for 2008 shutdown
ie-SPSC-04Dec07 ABATB-EA - CNGS 7
Layout ndash underground tunnels
Areas designated as ldquoradiation-saferdquo for
electronics
ie-SPSC-04Dec07 ABATB-EA - CNGS 8
Layout ndash electronics locations
TSG4 Electronics for
AB IT TShellip
Ventilation Units
TCV4 Electronics
for CV cranefire detection
M Sentis et al CERN-OPEN-2006-09-05
ie-SPSC-04Dec07 ABATB-EA - CNGS 9
Installed ventilation equipment
Unit 231
Ventilation duct
Service Gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 10
Installed ventilation equipment
Unit 232
TSG44
ie-SPSC-04Dec07 ABATB-EA - CNGS 11
Installed ventilation equipment
Balcony TCV4
ie-SPSC-04Dec07 ABATB-EA - CNGS 12
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 13
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 14
FLUKA Simulation - radiation field
Total dose in Gyy for a nominal CNGS year with 45E19 pot
AF
erra
ri e
t al
20
07
Absorbed Dose Gy per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10-4
10-3
10-2
10-1
1
10
10 2
10 3
10 4
10 5
10 6
Z(cm)
X(c
m)
~01 ndash 10 Gyy
ie-SPSC-04Dec07 ABATB-EA - CNGS 15
FLUKA Simulation - radiation field1 MeV neutron equivalent fluence cm-2 per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e9‐10e11
AF
erra
ri e
t al
20
07
1 MeV eq neutron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45 E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
Radiation issues on CNGS electronics
What happened
Radiation maps (updated in 2007)
Actions and plans for 2008 shutdown
ie-SPSC-04Dec07 ABATB-EA - CNGS 7
Layout ndash underground tunnels
Areas designated as ldquoradiation-saferdquo for
electronics
ie-SPSC-04Dec07 ABATB-EA - CNGS 8
Layout ndash electronics locations
TSG4 Electronics for
AB IT TShellip
Ventilation Units
TCV4 Electronics
for CV cranefire detection
M Sentis et al CERN-OPEN-2006-09-05
ie-SPSC-04Dec07 ABATB-EA - CNGS 9
Installed ventilation equipment
Unit 231
Ventilation duct
Service Gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 10
Installed ventilation equipment
Unit 232
TSG44
ie-SPSC-04Dec07 ABATB-EA - CNGS 11
Installed ventilation equipment
Balcony TCV4
ie-SPSC-04Dec07 ABATB-EA - CNGS 12
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 13
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 14
FLUKA Simulation - radiation field
Total dose in Gyy for a nominal CNGS year with 45E19 pot
AF
erra
ri e
t al
20
07
Absorbed Dose Gy per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10-4
10-3
10-2
10-1
1
10
10 2
10 3
10 4
10 5
10 6
Z(cm)
X(c
m)
~01 ndash 10 Gyy
ie-SPSC-04Dec07 ABATB-EA - CNGS 15
FLUKA Simulation - radiation field1 MeV neutron equivalent fluence cm-2 per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e9‐10e11
AF
erra
ri e
t al
20
07
1 MeV eq neutron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45 E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 7
Layout ndash underground tunnels
Areas designated as ldquoradiation-saferdquo for
electronics
ie-SPSC-04Dec07 ABATB-EA - CNGS 8
Layout ndash electronics locations
TSG4 Electronics for
AB IT TShellip
Ventilation Units
TCV4 Electronics
for CV cranefire detection
M Sentis et al CERN-OPEN-2006-09-05
ie-SPSC-04Dec07 ABATB-EA - CNGS 9
Installed ventilation equipment
Unit 231
Ventilation duct
Service Gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 10
Installed ventilation equipment
Unit 232
TSG44
ie-SPSC-04Dec07 ABATB-EA - CNGS 11
Installed ventilation equipment
Balcony TCV4
ie-SPSC-04Dec07 ABATB-EA - CNGS 12
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 13
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 14
FLUKA Simulation - radiation field
Total dose in Gyy for a nominal CNGS year with 45E19 pot
AF
erra
ri e
t al
20
07
Absorbed Dose Gy per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10-4
10-3
10-2
10-1
1
10
10 2
10 3
10 4
10 5
10 6
Z(cm)
X(c
m)
~01 ndash 10 Gyy
ie-SPSC-04Dec07 ABATB-EA - CNGS 15
FLUKA Simulation - radiation field1 MeV neutron equivalent fluence cm-2 per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e9‐10e11
AF
erra
ri e
t al
20
07
1 MeV eq neutron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45 E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 8
Layout ndash electronics locations
TSG4 Electronics for
AB IT TShellip
Ventilation Units
TCV4 Electronics
for CV cranefire detection
M Sentis et al CERN-OPEN-2006-09-05
ie-SPSC-04Dec07 ABATB-EA - CNGS 9
Installed ventilation equipment
Unit 231
Ventilation duct
Service Gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 10
Installed ventilation equipment
Unit 232
TSG44
ie-SPSC-04Dec07 ABATB-EA - CNGS 11
Installed ventilation equipment
Balcony TCV4
ie-SPSC-04Dec07 ABATB-EA - CNGS 12
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 13
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 14
FLUKA Simulation - radiation field
Total dose in Gyy for a nominal CNGS year with 45E19 pot
AF
erra
ri e
t al
20
07
Absorbed Dose Gy per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10-4
10-3
10-2
10-1
1
10
10 2
10 3
10 4
10 5
10 6
Z(cm)
X(c
m)
~01 ndash 10 Gyy
ie-SPSC-04Dec07 ABATB-EA - CNGS 15
FLUKA Simulation - radiation field1 MeV neutron equivalent fluence cm-2 per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e9‐10e11
AF
erra
ri e
t al
20
07
1 MeV eq neutron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45 E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 9
Installed ventilation equipment
Unit 231
Ventilation duct
Service Gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 10
Installed ventilation equipment
Unit 232
TSG44
ie-SPSC-04Dec07 ABATB-EA - CNGS 11
Installed ventilation equipment
Balcony TCV4
ie-SPSC-04Dec07 ABATB-EA - CNGS 12
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 13
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 14
FLUKA Simulation - radiation field
Total dose in Gyy for a nominal CNGS year with 45E19 pot
AF
erra
ri e
t al
20
07
Absorbed Dose Gy per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10-4
10-3
10-2
10-1
1
10
10 2
10 3
10 4
10 5
10 6
Z(cm)
X(c
m)
~01 ndash 10 Gyy
ie-SPSC-04Dec07 ABATB-EA - CNGS 15
FLUKA Simulation - radiation field1 MeV neutron equivalent fluence cm-2 per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e9‐10e11
AF
erra
ri e
t al
20
07
1 MeV eq neutron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45 E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 10
Installed ventilation equipment
Unit 232
TSG44
ie-SPSC-04Dec07 ABATB-EA - CNGS 11
Installed ventilation equipment
Balcony TCV4
ie-SPSC-04Dec07 ABATB-EA - CNGS 12
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 13
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 14
FLUKA Simulation - radiation field
Total dose in Gyy for a nominal CNGS year with 45E19 pot
AF
erra
ri e
t al
20
07
Absorbed Dose Gy per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10-4
10-3
10-2
10-1
1
10
10 2
10 3
10 4
10 5
10 6
Z(cm)
X(c
m)
~01 ndash 10 Gyy
ie-SPSC-04Dec07 ABATB-EA - CNGS 15
FLUKA Simulation - radiation field1 MeV neutron equivalent fluence cm-2 per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e9‐10e11
AF
erra
ri e
t al
20
07
1 MeV eq neutron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45 E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 11
Installed ventilation equipment
Balcony TCV4
ie-SPSC-04Dec07 ABATB-EA - CNGS 12
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 13
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 14
FLUKA Simulation - radiation field
Total dose in Gyy for a nominal CNGS year with 45E19 pot
AF
erra
ri e
t al
20
07
Absorbed Dose Gy per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10-4
10-3
10-2
10-1
1
10
10 2
10 3
10 4
10 5
10 6
Z(cm)
X(c
m)
~01 ndash 10 Gyy
ie-SPSC-04Dec07 ABATB-EA - CNGS 15
FLUKA Simulation - radiation field1 MeV neutron equivalent fluence cm-2 per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e9‐10e11
AF
erra
ri e
t al
20
07
1 MeV eq neutron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45 E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 12
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 13
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 14
FLUKA Simulation - radiation field
Total dose in Gyy for a nominal CNGS year with 45E19 pot
AF
erra
ri e
t al
20
07
Absorbed Dose Gy per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10-4
10-3
10-2
10-1
1
10
10 2
10 3
10 4
10 5
10 6
Z(cm)
X(c
m)
~01 ndash 10 Gyy
ie-SPSC-04Dec07 ABATB-EA - CNGS 15
FLUKA Simulation - radiation field1 MeV neutron equivalent fluence cm-2 per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e9‐10e11
AF
erra
ri e
t al
20
07
1 MeV eq neutron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45 E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 13
Incident on ventilation electronics
M B
atz
31
100
7
ie-SPSC-04Dec07 ABATB-EA - CNGS 14
FLUKA Simulation - radiation field
Total dose in Gyy for a nominal CNGS year with 45E19 pot
AF
erra
ri e
t al
20
07
Absorbed Dose Gy per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10-4
10-3
10-2
10-1
1
10
10 2
10 3
10 4
10 5
10 6
Z(cm)
X(c
m)
~01 ndash 10 Gyy
ie-SPSC-04Dec07 ABATB-EA - CNGS 15
FLUKA Simulation - radiation field1 MeV neutron equivalent fluence cm-2 per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e9‐10e11
AF
erra
ri e
t al
20
07
1 MeV eq neutron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45 E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 14
FLUKA Simulation - radiation field
Total dose in Gyy for a nominal CNGS year with 45E19 pot
AF
erra
ri e
t al
20
07
Absorbed Dose Gy per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10-4
10-3
10-2
10-1
1
10
10 2
10 3
10 4
10 5
10 6
Z(cm)
X(c
m)
~01 ndash 10 Gyy
ie-SPSC-04Dec07 ABATB-EA - CNGS 15
FLUKA Simulation - radiation field1 MeV neutron equivalent fluence cm-2 per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e9‐10e11
AF
erra
ri e
t al
20
07
1 MeV eq neutron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45 E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 15
FLUKA Simulation - radiation field1 MeV neutron equivalent fluence cm-2 per 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e9‐10e11
AF
erra
ri e
t al
20
07
1 MeV eq neutron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45 E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 16
FLUKA Simulation - radiation fieldFluence of hadrons with E 20 MEV CM-2 PER 45E+19
-500
0
500
1000
1500
2000
2500
-7500 -5000 -2500 0 2500 5000 7500 10000 12500
10 6
10 7
10 8
10 9
10 10
10 11
10 12
10 13
10 14
10 15
10 16
10 17
Z(cm)
X(c
m)
~10e7‐10e9
AF
erra
ri e
t al
20
07
Energetic (gt 20 MeV) hadron fluence (cm‐2 yr‐1) for a nominal CNGS year of 45E19 pot
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 17
Summary
The electronics that failed were installed in the TSG4 gallery next to the ventilation ducts and in the TCV4 balconywhich has direct ldquoviewrdquo in the target chamber
In both areas the radiation levels as predicted by the simulations are far too high for COTS components
the electronics should have failed and they did
No failures to electronics in the TSG4 ldquosaferdquo area were observedShould not have happened according to radiation maps for the beam intensities we had however
would have happened if we were running longer
The AB Dept Management has setup a Crash Effort Program to address the problem and assure the on‐time restart of the facility according to schedule in May 2008
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 18
CNGS Crash Program ndash The team
Overall coordination I EfthymiopoulosDeputy E Gschwendtner (CNGS Beam Physicist ndash operational aspects)
Radiation amp ElectronicsRadiation amp ElectronicsLayout studies planning S GirodSimulation L Sarchiapone A FerrariSCRP H Vincke C TromelShielding S Pelletier S Fumey R MortonTSEL S Infante J PierlotTSCV B Pirollet M BatzCrane A CalderoneABBI L JensenABATB R LositoNetwork E SallazAccess D RaffourtRADWG T Winjands
HornReflector HornReflector StriplineStripline repairrepairEngineering studies A PardonsTechnical design M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Spare Horn upgradeSpare Horn upgradeTechnician in charge M LazzaroniProduction installation TS (main workshop) ATB‐EA technical staff
Weekly meetingsElectronics Thursday 1430PMStripline Tuesday 1400PM
Weekly reports to AB mgmt board
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 19
Actions for 2008 shutdown
General guidelineGeneral guidelineMove whatever is possible of the electronics out of the CNGS tunnels
For the equipment which needsmust stay in the areaCreate a ldquoradiation‐saferdquo area by adding adequate shielding and move all the electronics in there Address the sensitivity to radiation of the installed electronics and investigate upgrade possibilities to rad‐tol componentsAssure a MTBF ndash of at least 1 year redundancy and preventive maintenance actions Install radiation monitoring system as in LHC
Assure compliance with INB safety rules at all cases
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 20
Installed equipment
TSCV Ventilation
TSIC Crane
TSCSE Fire Detectors Access System
TSEL Transformer Battery Charger Switchboard UPS
ITCS Ethernet optical fiber
ABATB Target Shutter Decay Tube vac Temperature probes
ABCO HornReflector Cooling
SCRP Radiation Detectors
ABBI Electronics for BLMs TBID BFCT BPMs
needed for beam
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 21
Installed Equipment
Switchboard
Transformer
Battery charger
Electronics Racks
Service gallery TSG4
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 22
Proposed layout ndash additional shieldingRequired reduction factor ~104
Typical shielding ~16m Fe + ~2m concrete but hermetic
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 23
Summary
With the proposed layout all the features of the CNGS facility are maintained with minor consequences for the long term operation of the facility
The designed shielding is what can be done assuring beam on time for 2008 It is expected to suffice for one year at nominal intensity (45E19 pot) ndash however it needs to be verified by simulation studies (already ongoing but also take time)
Detailed studies of the proposed layout have started and are expected to be completed by end of Januaryrsquo08 leaving enough time for tendering production and installation in‐situ
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 24
Summary
In addition to the ldquoelectronicsrdquo problem there are other activities in parallel
The work for the new design of the flexible striplinesThe refurbishment of spare horn to convert it to an operational spare by applying all the modifications in the water circuit as the ones installedStandard yearly maintenance activities
Yet another busy shutdown ahead for CNGS
Hope is this to be the last obstacle to overcome before delivering good and high intensity () beam to the CNGS experiments in 2008
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
Backup slides
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 26
Road map
MilestonesMilestonesWeek‐50rsquo07 (10‐12‐2007) present possible solutions with M+P budget estimates ndash finalize decisionWeek‐50rsquo07 week‐5rsquo08 (28‐01‐2008) detailed study drawings and planning Week‐5rsquo08 week‐12rsquo08 (17‐03‐2008) tendering offers select constructor admin proceduresWeek‐13rsquo08 week‐15rsquo08 (11‐04‐2008) constructor in place prepare worksWeek‐16rsquo08 week‐21rsquo08 (19‐05‐2008) works
Target CNGS ready for beam at the startup weekTarget CNGS ready for beam at the startup week‐‐2222 ( 26‐05‐2008)
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 27
CNGS Layout ndash Radiation field
ElectronicsRacks
unit519
unit231
unit232
unit237
1krad
unit236
VentilationUnits
Measurement in Aug06 finds 7Gy total dose which agrees quite well with the simulations
Z in cm
X
H Vincke 2001
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 28
CNGS Layout ndash ventilation electronics
Temperature Probes
Ventilation Units
Target Chamber
ServiceGallery
Proton Beam Linetarget
horn He tube 1 reflector
He tube 2 decay tube
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 29
Radiation field
Installed detectors by Thijs to measure radiation levels on installed electronicsDetails on his talk in a moment
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 30
Radiation Measurements 19-20 Oct 07
First preliminary results from Thijs First preliminary results from Thijs Measurements for ~10h with 72times10E16 pot (01 of CNGS yearly total)
TSG4 upstream part at the electronics racksDose lt 1rad1MeV equivalent neutrons lt1010 ncm2Hadrons (gt 20 MeV) gt 107 hcm2
In TCV4 balconyDose lt 1rad1MeV equivalent neutrons lt1010 ncm2
Hadrons (gt 20 MeV) gt2 107 hcm2
Rough estimate for 45 E19 potyr (nominal CNGS year)1 Analog IO module (ET200 M 8 AI ndash 13 bit from SIEMENS with index nr 1)
σ =310‐9 cm‐2 per deviceCNGS 63109 hcm2 (hadrons gt 20 MeV) ~19 failuresyear
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 31
CNGS 2006
CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 poCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013CNGS low intensity run 12 - 13 October 95x1015 pot
CNGS operation II 26 - 27 October 58x1016 potCNGS operation I
18 - 30 August 78x1017 pot
CNGS CommissioningWeeks 28 30 33 7x1015 pot
1x1013
During August 06 run failure of a fire detector and at the same time failure of one PLC in TCV4 Caused stop of two ventilation units in TSG4
Exchange of fire detectorPLC recovered itself
Communication loss of smoke detection from main supervisor control system (in BB4) to local control system installed in TCV4
Local control system was moved to BB4 during shutdown 0607 lsquoremote resetrsquo cables added between local smoke detectors and BB4
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec07 ABATB-EA - CNGS 32
Radiation Effects in Electronics
Cumulative EffectsTotal Ionizing Dose (TID)
Energy deposited by ionizationunit massCommercial electronics typically does not fail below 1 krad (10 Gy)
Displacement (due to non ionizing effects alteration of crystal structure)
particle fluence in particlescm2 with the particles converted to equivalent 1 MeV neutrons
Commercial electronics typically does not fail below 10e10 ncm2
Single Event Effects (eg bit flip in memory SEU)The SEE events are due to the energy deposition initiated by onesingle particle in the electronic device The probability for failure depends on cross‐section s of the device to fail and fluence of all hadronscm2 gt20MeV (conservatively 5MeV)
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec0733
Dose rate in nSvh ndash 20112007
60 60
45 8000400 40
100 170
700
50 55
First floor 40 cm from unitground floor
Measurment 22112007 28 165 45 12 16 2Measurement 192006 28 125 42 23 32 32Measurement 662006 110 13
values in uSvh
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP
ie-SPSC-04Dec0734
Dose rate in uSvh ndash 20112007
013
1712
in the aislecontact 10cmcontact
035
45
8 80
66
88 230
60
15
3567220
HVincke SCRP