chiho wang duke university 1 trt barrel integration status / schedule chiho wang

Chiho Wang Duke University

1

TRT Barrel integration

Status / Schedule

Chiho Wang


2

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)


3

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)


4

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.


5

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


6

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


7

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)


8

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)


9

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)


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


11

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.


12

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


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.

chiho wang duke university 1 trt barrel integration status / schedule chiho wang

Documents