Post on 20-Jan-2016
transcript
Chiho Wang Duke University
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TRT Barrel integration
Status / Schedule
Chiho Wang
Chiho Wang Duke University
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Barrel TRT
3 types of modules: Type 1: inner layer (329 straws) Type 2: middle layer (520 straws) Type 3: outer layer (793 straws)
32 modules each type. Total of 96 modules to be installed on BSS (Barrel
Support Structure)
Chiho Wang Duke University
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TRT Barrel Integration
Tasks: Install capacitors on modules (Duke) Prepare modules for installation (Duke/IU) Install modules in BSS (Duke/IU) Install front end electronics (Penn+) Install services: HV, cooling & gas manifolds.
(Duke/IU)
Chiho Wang Duke University
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A brief history
Jun 28 – 1st type 1 installed July 21 – Type 1 virtually
complete except for 2: 1 cooling sleeve problem 1 HV problem (M1.35)
Aug. 2 – type 1 complete Fixed cooling sleeve Gave up M1.35, used M1.26
Aug. 6 – 1st type 1 electronics installed, with readout & LV/cooling DCS interlock.
Aug. 11 – 1st type 2 installed Sep. 8 - M1.26 replaced with
M1.35 (complete finally!) Sep. 17 Type 2 virtually
complete except for 2 modules
Sep. 17 snap shot (mechanical): Type 1 - complete Type 2 - 30 modules installed,
waiting for 2 modules Type 3 - 7 modules in SR ready to
be installed.
Chiho Wang Duke University
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Module placement in BSS
Evenly distribute dead channels … Observe constrains or preferences on HV feeding side due to anomaly
in HV kapton.
Type 1
Dead Channels
Type 2
Dead Channels
Chiho Wang Duke University
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Module preparation
Capacitor installation Insert capacitors Check capacitor
connectivity Check HV traces HV test: caps + wires Seal capacitors Inspect seal and rework as
needed HV test: caps. + wires
Chiho Wang Duke University
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Module preparation
Pre-installation Check ground wire Check cooling sleeve Check mounting holes Custom make active gas
transitional fittings Leak test active gas fitting Glue purging gas gasket Apply HV kapton
protection tape Glue thermal sensors as
needed (4 modules each type)
Chiho Wang Duke University
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Module installation
Procedures & tests Fold HV kapton and cover with
protection plates Insert module & fix one corner Set module z position to middle of
BSS Fix module 2nd corner & attach set
screws Check purging gas flow
Type 1 1.5 L/min < 10% loss Type 1+2 1 L/min < 15% loss Type 1+2+3 0.5 L/min < 20% loss
Unfold HV kapton & check traces Attach & glue active gas fittings Plug & seal unused active gas
inlets. Leak test active gas volume
(1mB/B/min) Install protection boards HV test Check active gas path for
obstruction (flow rate test)
Chiho Wang Duke University
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Non-routine module work
Components modification Peek cooling tubes for
module cooling reduced from 0.123”-0.127” 0.116”-0.120” (done)
De-magnetization of active gas inlet plugs (started on type 2 modules)
Fuse box brackets dimension change
Fuse box screws changing from Nylon to Ultem
Module repair: Wire removal (2 bad wires +
some retroactive decisions from acceptance group)
HV trace repair (1) Cooling sleeve replacement
(3) Re-glue detached shell &
divider (1) Tension plate socket
replacement (2)
Chiho Wang Duke University
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Other then modules
Data Base: Access data base in use for progress tracking.
MTF: Migration in progress. Remaining BSS work: Outer cylinder shielding. Gas/Cooling manifold: Finalizing drawings
Chiho Wang Duke University
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Electronics installation (Penn)
Protection boards All type 1 + 5 type 2 installed. In
steady progress. FE assembly
1 type 1 installed. 23+ more being assembled
Working on software & data base, preparing for installation
DCS (Krakow) for HV, LV, Cooling, Interlock … ready.
Chiho Wang Duke University
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Schedule
Mechanical: Driven by module availability. Expecting to receive:
All type 2 (2 more modules) by the end of Sep. All type 3 (25 more modules) by the end of Nov.
Expect to finish module installation mid Dec.
Electronics: All type 1 boards produced and being processed & tested Hope to finish board production in Nov. and finish installation
Mar. 05
Service manifold installation & sector test March – May 05 Hand over to SCT in June 05
Chiho Wang Duke University
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Summary
~2/3 of the modules installed! Procedures are understood and becoming routine. Module installation expect to finish by the end of
the year Electronics installation started.