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David Schultz
Accelerator Readiness Review
Dec. 2, ‘081
SLAC National Accelerator Laboratory
Undulator Complex Status
• LCLS Introduction– Layout– Responsibilities– Schedule
• Undulator Complex Status• Outstanding issues
David Schultz
Accelerator Readiness Review
Dec. 2, ‘082
SLAC National Accelerator LaboratoryLinac Coherent Light Source at Linac Coherent Light Source at SLACSLAC
Injector (35Injector (35ºº))at 2-km pointat 2-km point
Far ExperimentFar ExperimentHall (underground)Hall (underground)
Near Experiment Hall Near Experiment Hall (underground)(underground)
New New ee Transfer Line (340 m) Transfer Line (340 m)
X-ray X-ray Transport Transport Line (200 m)Line (200 m)
Undulator (130 m)Undulator (130 m)
X-Ray Transport/Optics/Diagnostics
Existing 1/3 Linac (1 km)Existing 1/3 Linac (1 km)((Commissioned in 2007-8Commissioned in 2007-8))
David Schultz
Accelerator Readiness Review
Dec. 2, ‘083
SLAC National Accelerator Laboratory
Commissioning responsibilities • Beam operations
– Accelerator Systems Division (John Seeman)• Operates the Main Control Room• Operations adhere to the Beam Authorization Sheet• Schedules maintenance and repair• Manages the facilities
• Commissioning Goals (Paul Emma)– LCLS Project Physics group
• Schedules and organizes commissioning efforts to meet goals.
• Radiation Safety measurements (Sayed Rokni)– Radiation Physics group
• Performs measurements to confirm shielding efficacy
• LCLS Project provides funding for commissioning activities
David Schultz
Accelerator Readiness Review
Dec. 2, ‘084
SLAC National Accelerator Laboratory
Re-establishe- to SL2
LTU/Und
Comm.
Firs
t Li
ght
in
FEE
Firs
t Li
ght
in F
EH
NEH Ops & Commissioning
JJ FF MM AA MM JJ JJ AA SS DD JJ FF AA MM JJ JJ AA SS OO NN DD JJ FF MM AA MM JJ JJONA
2008 2009 2010 2008 2009 2010 DownP
PS
Linac/BC2 Commissionin
g FEL/FEECommissioni
ng Nov. 3, 2008
Inst
all
Undula
tors
D
LCLS Installation and Commissioning Time-Line
LTU
/Und
In
stall
PEP-I
I ru
n
ends
FEE/N
EH
In
stall
CD
-4
(7/3
1/2
01
0)
X-R
ays
in N
EH
now
DDown
?
FEH
Hutc
h B
O
M
David Schultz
Accelerator Readiness Review
Dec. 2, ‘085
SLAC National Accelerator Laboratory
SAD and ASE
SLAC-I-010-30100-000_lafase_text_r001SLAC-I-010-30100-016_lclsundcomplexsad_text_r000
David Schultz
Accelerator Readiness Review
Dec. 2, ‘086
SLAC National Accelerator Laboratory
LCLS beam limits from the ASE
1680 W is 1 nC at 14 GeV at 120 Hz, Typical 2009 commissioning will be at ~100 W
These are the power levels used in shielding design calculations.
David Schultz
Accelerator Readiness Review
Dec. 2, ‘087
SLAC National Accelerator Laboratory
LCLS New Construction
Far Exp. HallNear Exp. Hall
Undulator ComplexSLAC Linac
Front End Enclosure (FEE)
Undulator Hall
Photon Systems
e- Beam Dump
Beam Transport Hall
David Schultz
Accelerator Readiness Review
Dec. 2, ‘088
SLAC National Accelerator Laboratory
Beam Transport Hall
David Schultz
Accelerator Readiness Review
Dec. 2, ‘089
SLAC National Accelerator Laboratory
Undulator Hall
David Schultz
Accelerator Readiness Review
Dec. 2, ‘0810
SLAC National Accelerator Laboratory
Undulator Magnet Installed
David Schultz
Accelerator Readiness Review
Dec. 2, ‘0811
SLAC National Accelerator Laboratory
Electron Beam Dump Area
David Schultz
Accelerator Readiness Review
Dec. 2, ‘0812
SLAC National Accelerator Laboratory
Undulator Complex Status
• Installation complete – Vacuum, Magnets, Diagnostics,
Safety Systems– Final alignment this week.
• Systems’ checkout– Controls and Physics checkout is underway.
• Safety Systems Initial Acceptance Tests– PPS, BCS Initial Acceptance Tests this week.
David Schultz
Accelerator Readiness Review
Dec. 2, ‘0813
SLAC National Accelerator Laboratory
Outstanding Issues (11-25-08)
• Fire safety check-off– Fire systems commissioning through 11/26
• Final shielding– Final elements to be installed this week
• Punch list closeout (a copy is on the web)– Some items need pre-start completion
• Preparedness document sign-off– Final signatures are last-minute, inc. ASD
• Beam Authorization Sheet (BAS) sign-off (ASD, RP)
is the final link before operations
David Schultz
Accelerator Readiness Review
Dec. 2, ‘0814
SLAC National Accelerator Laboratory
LCLS New Construction
Far Exp. HallNear Exp. Hall
SLAC Linac
Front End Enclosure (FEE)
Undulator Hall
Beam Transport Hall
e- Beam Dump
Photon stopperswill be locked in until photon
systems operations are authorized.
David Schultz
Accelerator Readiness Review
Dec. 2, ‘0815
SLAC National Accelerator Laboratory
Dump-FEE safety system layout
Photon stoppers
David Schultz
Accelerator Readiness Review
Dec. 2, ‘0816
SLAC National Accelerator Laboratory
B4C
• Stoppers must be able to withstand the allowed
beam power (x-rays) indefinitely. B4C is placed on stoppers face to withstand the FEL beam • Damage threshold of B4C calculated to have a
safety factor of ~10.• Have a test apparatus to confirm viability,
with a B4C sample placed in the photon beam,
for testing at increasing beam power density.• Detailed testing plan needed prior to installing
Undulator magnets.
David Schultz
Accelerator Readiness Review
Dec. 2, ‘0817
SLAC National Accelerator Laboratory
Summary
• The SAD and ASE for LCLS Undulator Complex commissioning are signed.• The Undulator Complex technical systems are installed and are being checked.• Safety systems are complete this week (some shielding installation and the IAT).
– Completion will be verified through the BAS.
• Accelerator Operations and maintenance will be done by experienced SLAC groups.• Plans are in place for the beam commissioning program.
David Schultz
Accelerator Readiness Review
Dec. 2, ‘0818
SLAC National Accelerator Laboratory
end
David Schultz
Accelerator Readiness Review
Dec. 2, ‘0819
SLAC National Accelerator Laboratory
FEE
e- Beam Dump (DLH)
Plan view
Elevation view
Main dump
NEH
PEPII ring road
Hutch1
Hutch2
Main dump line
Layout of DLH, FEE, and NEH
BYDs – DC magnetsWall 2Wall1