Hall D Progress and Issues - userweb.jlab.orggen/talks/talk_aps2010_sattel.pdf · Scheduled BO Aug 2011 E.Chudakov APS 2010 Hall D Progress and Issues 5. ... FMPM → 13 segments/13×2

Outline

Hall D Progress and Issues

E.Chudakov1

1JLab

APS Feb 2010, JLab Satellite Meeting

E.Chudakov APS 2010 Hall D Progress and Issues 1

Outline

Outline

1 Hall D Project

2 Hall D Construction

3 Summary

4 Appendix


Outline

Outline

1 Hall D Project


3 Summary

4 Appendix


Outline

Outline

1 Hall D Project


3 Summary

4 Appendix


Outline

Outline

1 Hall D Project


3 Summary

4 Appendix


Hall D Project Hall D Construction Summary Appendix

Motivations for Building a New Hall D

1 GlueX: Map out the spectrum of exotic hybrid mesons inthe light quark sector.

linearly polarized photons at ∼ 9 GeV;detector optimized for PWA for multi-particle final states;collect high-statistics data.

Approved by PAC30 in 2006

2 PRIMEX: Precise measurement of η → γγ coupling inPrimakoff reaction

standard detector;unpolarized photons at 10-11.5 GeV;

Approved by PAC35 in 2010



Other Physics Interests

Charm production close to thresholdsCascade resonancesA new workshop in 2010



New Beamline and new Hall D

Thomas Jefferson National Accelerator Facility Page 4

IPR06 June 27-28, 2006


Hall D Meeting May 13, 2009

Hall D Complex - Site Plan

N

Tunnel Extension &

Tagger Area

Construction started 2009Floor thickness increased

Scheduled RFE Aug 2010Scheduled BO Aug 2011



New Beamline and new Hall D


IPR06 June 27-28, 2006


Hall D Meeting May 13, 2009

Hall D Complex - Site Plan

N

Tunnel Extension &

Tagger Area

Construction started 2009Floor thickness increased

Scheduled RFE Aug 2010Scheduled BO Aug 2011



Hall D and the Photon Beamline

• 12 GeV e− beam 2.2 µA• 20 µm diamond: coherent <25 µrad• Collimation r <1.8 mm at ∼ 80 m• Coherent peak 8.4− 9.0 GeV

photons: 108 MHz P ∼ 40%• Energy/polarization measured:• Tagger spectrometer• Pair spectrometer



Diamond Radiator

Uconn

CVD 4× 4× 0.3 mm3 diamond - OK!

Test at CHESS 2009: Holder redesign

Michelson interferometer - checking

Heat load analyzed

Thinning 300 → 20 µm studiesLaser ablation / Chemo-Mechanical / Ion


IPR September 22-24, 2009

Diamond Radiator

CVD 4x4x0.4 mm3 diamond - OK! Test at CHESS 2009: holder's vibration

• redesign the holder (no wires/more wires)• Michelson interferometer for checkingthe holder stability and diamond shape

Heat load is being analyzed (holder design) Diamond thinning by ablation:

• 248 nm excimer laser at UConn -not used for 10 years - testing needed

375.1 375.15 375.2 375.25 375.30

0.2

0.4

0.6

0.8

1

rocking angle (mrad)In

tensity

Rocking curves

Vibration fixed

σ=10μr

Interferometer Excimer laser

Vibration of the holder

σ=60μr

spec:20μr

Procurement of diamonds: FY11

100 μr

100 μr



Spectrometer

Overview - Alex DzierbaHall D

Calorimeter Review1

Hall D/GlueX Calorimeter ReviewOverview and Physics Motivation

Alex R. DzierbaIndiana U and Jefferson Lab

1. Brief review of the physics: search for exotic hybrid mesons

2. Importance of neutral particle detection

3. Role of calorimetry and performance metrics

B = 2.2 T

Liquid H target - 30 cm long

Solenoid: 2.24 T

Tracking (inside solenoid):• Start counter• Central Drift Chamber (CDC)• Forward Drift Chamber (FDC)

Calorimetry• Barrel Calorimeter (BCAL)• Forward Calorimeter (FCAL)

Time-of-flight wall (ToF)

Custom read-out & trigger



Central Drift Chamber



Central Drift Chambers

Stereo straws

Support tube

Outer skin

Upstream gas plenum

cap

Upstream

end plate (Φ

119.5cm)

Downstream end plate

Inner skin

180cm

dE/dx for p < 450 MeV/cGas mixture: ~60/40 Ar/CO2Angular Coverage: 6o-155o

Resolution:sr ~ 150 m, sz~1.5 mm

Developed at CMU, JLab

3552 Straws (r=8 mm): 28 layers

6 - 150 optimal angular coverage

Resolution: σrφ = 150 µmdEdx for π/proton ID (p < 450 MeV/c)

CMU construction starts 2010E.Chudakov APS 2010 Hall D Progress and Issues 9


Central Drift Chamber - Progress

Straw material selection

Mylar 100 µm Al 15 µmmechanically delicate

Mylar 100 µm Al 0.03 µmmechanically stable

Radiation test ∼50 years ofrunning:no degradation of signals

Electron microscope: 0.03 µm Al- stable

• Selection: Mylar 100 µm Al 0.03 µm• Active procurements:

endplates, pins, feedthroughs

Not radiated Radiated

Figure 5: Comparison between a Lamina-thick straw that was not used (left) and the onethat was irradiated (right) at 5 and 20µm scale.

8

Figure 7: Comparison between a Lamina-thin straw that was not used (left) and the onethat was irradiated (right) at 5 and 20µm scale.

10



Forward Drift Chamber

JLab

4 packages × 6 planes (2300 wires, 10200 cathodestrips)

Plane: wire 0 and 2 cathode strip readouts ±75

→ suppression of ambiguities

1 - 30 angular coverage

σxy = 200 µmE.Chudakov APS 2010 Hall D Progress and Issues 11


Forward Drift Chamber - Construction Prototype

Good signals

Many problems found and fixed

Construction starts April 2010

4

Figure 4: Cathode signals at +2200 V.

The peak amplitudes in figures 3 and 4 correspond to input impulse charges of 95 fC and 111 fC, respectively, which are within the linear region of the preamp. Limited streamer operation is clearly seen at +2200 V.

The output signal peak amplitudes for a sense wire and a cathode strip were measured as a function of the sense wire +HV with the Fe-55 source. The results are plotted in figure A3 in the appendix and show that the gains are matched between anode wires and cathode strips. Considering the ratio of the gains (3.2 mV/fC for cathode strips and 0.77 mV/fC for sense wires for the default preamp configuration) to be 4.2, the maximum slope region between +1950 V and +2050 V provides a reasonable operating range.

Direct observation of the gain matching between anode wires and cathode strips is made possible by requiring coincidences and proper placement of the Fe-55 source. Figure 5 shows cathode (top) and anode (bot)

pulses in coincidence at +2100 V for a long strip and a long anode wire.

Figure 5: Cathode (top) & Anode (bot).

As gain multiplication occurs close to the anode wire, the positive ion charge is halved between the cathode planes; the charge is then distributed among a few strips on each of the cathode planes. The peak cathode strip charge has been calculated to be about 1/5 of the anode wire charge and the preamp gains have been set accordingly. This is verified by observing similar pulse amplitudes for cathode strips and anode wires. Short and Long Wires and Strips

We observed similar signal characteristics across the detector for short and long anode wires and cathode strips. Figure 6 shows the anode (top) and cathode (bot) signals in coincidence for a short strip (close to the edge of the detector) and wire of half the length of the longest wire at +2000 V.

10 ns

7

Figure A3: Anode and cathode output peak amplitudes.

Figure A4: Anode and cathode input referred charge.

050

100150200250300350400

1800 1850 1900 1950 2000 2050 2100 2150 2200

Vp

(mV

)

+HV (V)

Output Peak Amplitude x HVAnode & Cathode with Fe‐55

Anode Fe‐55

Cathode Fe‐55

0

100

200

300

400

500

1800 1850 1900 1950 2000 2050 2100 2150 2200

Qin

(fC)

+HV (V)

Input Charge x HVAnode & Cathode with Fe‐55

Anode Fe‐55

Cathode Fe‐55



Barrel Calorimeter

Module: 191 layers Pb:SciFi:Glue(37:49:14)

48 modules

SiPM → 40 segments/12×2 ADCFMPM → 13 segments/13×2 ADC

σE/E (%) = 5.54/√

(E) + 1.6 beam

Charged particle PID (ToF: TDC)E.Chudakov APS 2010 Hall D Progress and Issues 13


BCAL - Scintillating Fibers



BCAL: Scintillating Fibers QA

Kuraray (SCSF-78-MJ): 4 shipments so far ~ 20% of totalMeet or exceed the specifications: Latten>300cm, Npe>3.5

360±20cm

380±20cm

370±20cm

6.9 pe

7.2 pe

7.0 pe

shipment

1

2

3



Barrel Calorimeter - Construction Started

ReginaFirst Module

Matrix alignment

Polished edge: very regular matrixE.Chudakov APS 2010 Hall D Progress and Issues 15


Barrel Calorimeter - Readout

Selection: SiPM or FMPMT - by January 2010Hamamatsu 12×12 mm2 10pcs

1

GlueX-doc-1387

Summary of the BCAL Readout Tests Using

SiPM Arrays

2 December 2009

Fernando J. Barbosa Jefferson Lab

1. Introduction

Electrical tests of the new Hamamatsu and SensL 4 x 4 SiPM arrays with the

prototype BCAL preamp have been performed. The objectives of these tests were to verify the correct electrical operation of the SiPMs as per the specifications supplied to the manufacturer. The BCAL readout parameters were previously described [1] and tests of the Hamamatsu and SensL 4 x 4 SiPM arrays have been presented [2], [3]. This note presents a summary of the most relevant parameters required for electrical qualification of the SiPM arrays delivered by Hamamatsu and SensL

2. The 4 x 4 SiPM Arrays

Figures 1 and 2 show the 4 x 4 SiPM arrays delivered by Hamamatsu and SensL, respectively. Ten (10) units were delivered by each of the vendors.

Figure 6: Front view of the preamp module. Figure 7: Side view.

PreliminaryProducer PDE noise τL τ10% unifrmHamam. 25% 60 MHz 14 ns 80 ns 10%SenSL 10% >60 MHz 13 ns 180 ns ?

SenSL 12×12 mm2 10pcs

1

GlueX-doc-1387

Summary of the BCAL Readout Tests Using

SiPM Arrays

2 December 2009

Fernando J. Barbosa Jefferson Lab

1. Introduction

Electrical tests of the new Hamamatsu and SensL 4 x 4 SiPM arrays with the

prototype BCAL preamp have been performed. The objectives of these tests were to verify the correct electrical operation of the SiPMs as per the specifications supplied to the manufacturer. The BCAL readout parameters were previously described [1] and tests of the Hamamatsu and SensL 4 x 4 SiPM arrays have been presented [2], [3]. This note presents a summary of the most relevant parameters required for electrical qualification of the SiPM arrays delivered by Hamamatsu and SensL

2. The 4 x 4 SiPM Arrays

Figures 1 and 2 show the 4 x 4 SiPM arrays delivered by Hamamatsu and SensL, respectively. Ten (10) units were delivered by each of the vendors.

Figure 6: Front view of the preamp module. Figure 7: Side view.

3

Figure 3: Single cell response with SensL readout.

Figure 4: 16 cell Sum output with SensL readout.

180 ns

196 ns



Forward Calorimeter

Indiana5.6 m away from target2800 lead glass blocks(used before in E852 andRadPhi)Stacked in circular shape:2.4 m diameterσ/E (%) = 5.6/

√E + 2.0

σxy ≈ 0.64 cm/√

E



Forward Calorimeter



FCAL Progress (Indiana)

Mechanical design nearly final Magnetic shielding being tested New CW base design: almost complete (10 prototypes Jan 2010) CAN control system is progress Progress with radiation tests of lead glass 64-module prototype:

Ethernet-CAN gateway

Construction starts in FY10



Electronics

Progress:FADC-250 (16ch 12bit) - close to finalFADC-125 (72ch 12bit) - 1/2 done, Jun 2010 - finalCTP - doneTrigger checked with 2 crates: ∼ 200 kHz achieved



ASIC/GPC - Preamplifier/board for CDC and FDC

2

The three assembly variants will be nominally configured as follows: V1 – Input = Anode Readout

Gain = 0.6 mV/fC Outputs = Discriminators.

V2 – Input = Cathode Readout

Gain = 3 mV/fC Outputs = Analog.

V3 – Input = Anode Readout

Gain = 0.6 mV/fC Outputs = Analog.

Figures 1 and 2 show the top and bottom, respectively, of the preamp card and as received from assembly.

Figure 1: GPC-II – Top View.

Figure 2: GPC-II – Bottom View.

4. Test Setup A short-pulse charge injector, as depicted in figure 3, was used to test all the 24 preamp channels. The test setup is shown in appendix B.

Figure 3: Short –Pulse Charge Injector

Except as indicated, all the tests were performed with the ASIC bits set at their default values and with the outputs referenced to +1.25V through 56 Ω resistors. The standard GlueX output drive configuration is shown in appendix C, where RTERM differentially terminates the complementary outputs. Note that the cable specified for use with the CDC and the FDC has a characteristic impedance of 100 Ohm.

5. Linearity

The impulse response was measured for varying input charges. Figure 4 shows the response to 100 fC of charge for the low gain configuration with the following bit configuration: INPA1=INSH1=SH_RC=0, INPA2=INSH2=1

Input

51 Ω

910 Ω

1 pF

Temperature Sensor

GAS‐II ASIC

Output Connector

Input Connector

Input Protection

Power Section

To

Bit Resistors

2

The three assembly variants will be nominally configured as follows: V1 – Input = Anode Readout

Gain = 0.6 mV/fC Outputs = Discriminators.

V2 – Input = Cathode Readout

Gain = 3 mV/fC Outputs = Analog.

V3 – Input = Anode Readout

Gain = 0.6 mV/fC Outputs = Analog.

Figures 1 and 2 show the top and bottom, respectively, of the preamp card and as received from assembly.

Figure 1: GPC-II – Top View.

Figure 2: GPC-II – Bottom View.

4. Test Setup A short-pulse charge injector, as depicted in figure 3, was used to test all the 24 preamp channels. The test setup is shown in appendix B.

Figure 3: Short –Pulse Charge Injector

Except as indicated, all the tests were performed with the ASIC bits set at their default values and with the outputs referenced to +1.25V through 56 Ω resistors. The standard GlueX output drive configuration is shown in appendix C, where RTERM differentially terminates the complementary outputs. Note that the cable specified for use with the CDC and the FDC has a characteristic impedance of 100 Ohm.

5. Linearity

The impulse response was measured for varying input charges. Figure 4 shows the response to 100 fC of charge for the low gain configuration with the following bit configuration: INPA1=INSH1=SH_RC=0, INPA2=INSH2=1

Input

51 Ω

910 Ω

1 pF

Temperature Sensor

GAS‐II ASIC

Output Connector

Input Connector

Input Protection

Power Section

To

Bit Resistors

8

Appendix D – Linearity Plots

y = 0.7727x + 1.8

y = 0.5683x + 1.1222

050

100150200250300350

0 100 200 300 400 500V

dout

(m

V)

Qin (fC)

Preamp Impulse Response (Vd x Qin)INPA1,INPA2, INSH1,INSH2,SH_RC,HIGAIN,EN_CMP=0101X00

Low Gain, RC=0

Low Gain, RC=1

fit1‐ 260fC@5%

fit2 ‐ 380fC@5%

y = 3.2394x + 10.933

y = 2.6048x + 4.13330

200

400

600

800

0 50 100 150 200 250

Vdo

ut (

mV

)

Qin (fC)


High Gain, RC=0

High Gain, RC=1

fit3 ‐ 110fC@5%

fit4 ‐ 130fC@5%

y = 0.8497x + 1.4667

y = 0.6233x + 1.15560

100

200

300

400

0 100 200 300 400 500

Vdo

ut (

mV

)

Qin (fC)


Low Gain, RC=0

Low Gain, RC=1

fit1‐ 260fC@5%

fit2 ‐ 320fC@5%

• Anodes: 1.2 mV/fC, Q<600 fC• Cathodes: 6.0 mV/fC, Q<120 fC• Anode discriminators: 3.2 fC

• ASIC-II (8ch) developed at Upenn

• GPC-II (3 ASICs) developed at JlabProduction summer 2010



WBS 1.5 (12 GeV) and 5.5 (BIA) Budget



1.5 Cost Construction

WBS System FY09$k

Direct

1.5.1 Solenoid 1231

1.5.2 Detectors 12217

1.5.3 Computing 2954

1.5.4 Electronics 6210

1.5.5 Beamline 3086

1.5.6 Infrastructure 3429

1.5 Total 29127

Construction

16.0%

Remainder of 12GeV

Upgrade Total

Construction84.0%

Hall D Construction

Hall D construction: 16% of total

WBS System $k (FY09)direct

1.5.1 Solenoid 12311.5.2 Detectors 122171.5.3 Computing 29541.5.4 Electronics 62101.5.5 Beamline 30861.5.6 Infrastructure 34291.5 Total 291275.5 BIA 5600



Hall D WBS 1.5 Earned Value

2/11/2010, 2:07 PM EVMSCharts: 1.5 Construction-Hall D 3 of 90

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

18,000

K$

Mar-

09

Apr-

09

May-

09

Jun-

09Jul-09

Aug-

09

Sep-

09

Oct-

09

Nov-

09

Dec-

09Jan-10

Feb-

10

Mar-

10

Apr-

10

May-

10

Jun-

10Jul-10

Aug-

10

Sep-

10

Oct-

10

Nov-

10

Dec-

10Jan-11

Feb-

11

Mar-

11

Apr-

11

May-

11

Jun-

11Jul-11

Aug-

11

Sep-

11

BCWS 272 468 591 839 1,120 1,317 1,528 2,054 2,378 2,529 2,948 3,225 3,477 3,913 4,166 5,796 6,720 7,157 7,594 8,029 8,300 9,023 9,427 9,923 10,65311,17511,63412,23114,06615,15615,779

BCWP 249 259 276 467 824 945 1,234 1,699 1,997 2,271 2,520

ACWP 206 247 284 473 844 929 1,237 1,681 2,050 2,401 2,681

Obligated 1,067 1,111 1,215 1,525 1,662 1,974 3,486 3,589 3,751 3,917 4,016

Pending 1,351 1,381 1,442 1,881 2,017 3,420 3,525 4,303 3,757 3,924 4,029

P6 Obl (FY10

Direct $)737 857 870 1,601 1,923 2,203 3,531 3,651 3,700 3,671 5,745 5,836 6,504 6,684 6,807 7,410 7,548 7,677 8,065 8,863 8,983 9,188 12,25013,13713,46713,87814,09614,67114,82315,06815,287

Funding 1,225 3,419 3,419 3,419 3,420 3,412 3,412 4,412 5,412 4,540 8,155 8,155 8,155 8,155 8,155 8,155 8,155 8,155 8,155 9,155 10,15511,15512,15513,15514,15515,15515,30515,45515,60515,75515,905

CAM EAC 31,26031,26031,26033,42233,42333,58433,58433,58433,58433,58434,530

12 GeV 1.5 Construction Hall D

Earned Value $K

Budget-at-Completion

$31,711K

Done 8.0%



Hall D Civil

Feb 01 - floor DONE!Feb 12 - walls started

Phase 16 months behind

mud slab: alignment error

discovery: design mistakewater pressure!

redesign: floor 2ft→3.5ft

bad weather

cost adjustment

Phase 2Still on schedule



The Gluex collaboration

Carnegie Mellon (CDC)

Catholic University

Christopher Newport

Florida International(start-counter)

Florida State (ToF wall)

Glasgow (γ-beam)

Indiana University (FCal)

IUCF (CDC, FDC)

University on NC, A&T

University on NC,Wilmington

Jefferson Lab (CDC, FDC,BCal,γ-beam)

University of Connecticut(γ-beam)

University of Athens (BCal)

University of Pennsylvania(CDC, FDC)

University of Regina (BCal)

Yerevan (γ-beam)



Summary

PED finishedConstruction started: BCAL,FCAL,FDC,CDCreasonably good progress, about 1-2 months behindNew collaborators: NC A&T, WilmingtonNew hires: Hall Leader, Work Coordinator, 2 scientists,1 engineer, 2 techsIssues:

Manpower (slowly improving)Solenoid - takes much more resources than anticipatedLehman review Sept 2009: concernTechnical review Nov 2009: endorsed the current planCoil testing - till July 2011



Tagger

e

e

γ

Recent optimization JLab :

Pole width 400 ⇒ 340 mm

20% lighter

Energy resolution (optics)0.02%⇒< 0.1%

1.5 T dipole, 6 m long, 30 mmpole gap

Deflects electrons (13.4=12 GeV)

190 Hodoscopes: scintillator +PMTs (12 m long)→ 3 - 11.7 GeV Catholic :

Microscope: 124 scintillatingfibers (movable) + SiPMs→ 8.3 - 9.1 GeV ± 8 MeVUconn :



Spectrometer and Dimensions

560 cm

342 cm

48 cm

185 cm

BCAL

CDC

Central Drift ChamberFDC

Forward Drift Chambers

GlueX Detector

Forward

Calorimeter

Solenoid

390 cm long

inner radius: 65 cm outer radius: 90 cm

240 cm diameter

45 cm thick

30-cm target

CL

Future

Particle ID

photon

beam

10.8 o

14.7 o

118.1 o

126.4 o

FCAL Barrel Calorimeter



Forward Drift Chamber - Construction Prototype



FDC progress: construction prototype

4 planes of full scale cathodes: Cu 2 μm and 5 μm finalizing construction procedures

IUCF wire stringing

wire board

cathode tensioning

cathode glued to the frame

2 cathodes glued back-to-back



Solenoid



Solenoid

• Coil 1 (Jlab) : short fixed, the coil is reassembled• Coil 3 (IUCF) : new LN2 shield is being installed• Coil/yoke configuration modified - reevaluation of the forces

Minimizing the forces and mitigation of potential problems: coils 1 and 2 are swapped steel baffles added to the yoke reinforcement of coil 2 is being evaluated

• Equipment for the controls is being purchased (12 GeV CR09-27)• Preparations for individual coil testing in FY10

coils

baffles

coil 1

4 separate coils

Coil refurbishing on BIA (operations)

2 1 3 4


Documents

Hall D Progress and Issues - userweb.jlab.orggen/talks/talk_aps2010_sattel.pdf · Scheduled BO Aug 2011 E.Chudakov APS 2010 Hall D Progress and Issues 5. ... FMPM → 13 segments/13×2