Chiho Wang Duke University 1 TRT Barrel integration Status / Schedule Chiho Wang

Chiho Wang Duke University 2 Barrel TRT  3 types of modules: u Type 1: inner layer (329 straws) u Type 2: middle layer (520 straws) u 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 3 TRT Barrel Integration  Tasks: u Install capacitors on modules (Duke) u Prepare modules for installation (Duke/IU) u Install modules in BSS (Duke/IU) u Install front end electronics (Penn+) u Install services: HV, cooling & gas manifolds. (Duke/IU)

Chiho Wang Duke University 4 A brief history  Jun 28 – 1 st type 1 installed  July 21 – Type 1 virtually complete except for 2: u 1 cooling sleeve problem u 1 HV problem (M1.35)  Aug. 2 – type 1 complete u Fixed cooling sleeve u Gave up M1.35, used M1.26  Aug. 6 – 1 st type 1 electronics installed, with readout & LV/cooling DCS interlock.  Aug. 11 – 1 st 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): u Type 1 - complete u Type modules installed, waiting for 2 modules u Type modules in SR ready to be installed.

Chiho Wang Duke University 5 Module placement in BSS u Evenly distribute dead channels … u 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 6 Module preparation  Capacitor installation u Insert capacitors u Check capacitor connectivity u Check HV traces u HV test: caps + wires u Seal capacitors u Inspect seal and rework as needed u HV test: caps. + wires

Chiho Wang Duke University 7 Module preparation  Pre-installation u Check ground wire u Check cooling sleeve u Check mounting holes u Custom make active gas transitional fittings u Leak test active gas fitting u Glue purging gas gasket u Apply HV kapton protection tape u Glue thermal sensors as needed (4 modules each type)

Chiho Wang Duke University 8 Module installation  Procedures & tests u Fold HV kapton and cover with protection plates u Insert module & fix one corner u Set module z position to middle of BSS u Fix module 2 nd corner & attach set screws u Check purging gas flow Type L/min < 10% loss Type L/min < 15% loss Type L/min < 20% loss u Unfold HV kapton & check traces u Attach & glue active gas fittings u Plug & seal unused active gas inlets. u Leak test active gas volume (1mB/B/min) u Install protection boards u HV test u Check active gas path for obstruction (flow rate test)

Chiho Wang Duke University 9 Non-routine module work  Components modification u Peek cooling tubes for module cooling reduced from 0.123”-0.127”  0.116”-0.120” (done) u De-magnetization of active gas inlet plugs (started on type 2 modules) u Fuse box brackets dimension change u Fuse box screws changing from Nylon to Ultem  Module repair: u Wire removal (2 bad wires + some retroactive decisions from acceptance group) u HV trace repair (1) u Cooling sleeve replacement (3) u Re-glue detached shell & divider (1) u Tension plate socket replacement (2)

Chiho Wang Duke University 10 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 11 Electronics installation (Penn)  Protection boards u All type type 2 installed. In steady progress.  FE assembly u 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 12 Schedule  Mechanical: u 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. u Expect to finish module installation mid Dec.  Electronics: u All type 1 boards produced and being processed & tested u 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 13 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.