chiho wang atlas trt duke university cern, feb. 2005 1 trt barrel assembly status & schedule...

Chiho Wang ATLAS TRTDuke University CERN, Feb. 2005

1

TRT Barrel assembly

status & scheduleFeb. 9, 2005


2

All modules installed!

Feb. 3, 2005


3

Snap shot

Feb. 8 snap shot Type 1:

All modules installed & tested

All electronics installed 20 modules cooling tube

installed Type 2:

All modules installed & tested

18 side A electronics installed

Type 3: All modules installed 28 modules with protection

boards and tested Feb. 06, 2005


4

Module installation time line

0

1

2

3

4

5

6

7

8

06/12/04 08/01/04 09/20/04 11/09/04 12/29/04 02/17/05Date

mo

du

les

inst

alle

d /

day

type 1

type 2

type 3

Feb. 3

Sep. 19

Nov. 19

Aug. 11Jun. 25

Aug. 02

Sep. 08

30 module mounting days


5

0

2

4

6

8

10

12

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31

Position

# d

ead

wir

e

Module placement

0

2

4

6

8

10

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

Position

# d

ead

wir

es

Final dead wire distribution:

Type 1123.5 = 1.17%

Type 2121=0.73%

Type 3572.5=2.26%

0

10

20

30

40

50

60

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31

Position

# d

ead

wir

es


6

Final dead wire distribution

Whole barrel: 817 = 1.55%

0

10

20

30

40

50

60

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31

Position

# o

f d

ea

d w

ire

s


7

Mechanical Assembly Processes


8

Module preparation (done, except for spares)

Capacitor installation (~1-2 days/module)

Insert capacitors Check capacitor

connectivity Check HV traces HV test: caps + wires Seal capacitors

Pre-insertion prep. (6 modules/day/2 person)

Check ground wire Check cooling sleeve Check mounting holes Active gas fittings,

custom made for each module: connection & leak test

Glue purging gas gasket Tape HV kapton for

protection Glue thermal sensors as

needed (4 modules each type)


9

Module installation & tests (4 last modules)

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 1.5 L/min < 15% loss Type 1+2+3 0.5 L/min < 20% loss

Unfold HV kapton & check HV 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 with Ar-CO2 Check active gas path for

obstruction (flow rate test)

Type 1 Leak rate

0

0.10.2

0.30.4

0.50.6

0.7

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31

Module Position

mB

/B/m

in

Type 2 leak rate

0

0.05

0.1

0.15

0.2

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31

Positionm

B/B

/min

Type 3 leak rate

0

0.1

0.2

0.3

0.4

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31

Position

mB

/B/m

in


10

Cooling lines installation (on going)

After the electronics have been:

Installed Continuity check Noise check

The cooling lines are: inserted through both

corners of the module 90 bend forced on one end Attachment to cooling plate

at each end. (T1 – 20 modules)

Cooling flow measurement is made.

(T1- 20 modules)


11

Module repairs & modifications

Components modification Peek tubes for module

cooling reduced from 0.123”-0.127” 0.116”-0.120” (done)

Fuse box brackets dimension change

Fuse box screws changed from Nylon to Ultem

CO2 flushing tube redesigned with corrigated PEEK.

De-magnetized stainless steel screws for active gas inlet plugs (started from type 2 modules)

Module repair: Wire removal (2 bad wires +

some retroactive decisions from acceptance group)

HV trace broken, shares from neighboring line (1)

Cooling sleeve replacement (4)

Three wires removed from BSS. (2 drawing excess current, 1 shorted).

Two modules (T1) show a connection between 2 signal wires (double joints) at one end. Left for now.


12

Remaining mechanical work

Finish testing the last 4 type 3 modules (~1week) Continue to install module cooling tubes as electronics are installed Install outer cylinder

After all modules are tested (~ March, ~1week) Before manifold can be installed

Install services after electronics are installed Cooling manifold (contract, deliver ~ April) Active gas manifold (drawing/review ~ this week) Purging gas manifold (parts)

Install fuse boxes Need to solve fuse problem and resume production 3 possible windows for installation (in descending preferences)

Before TRT/SCT system test ~ Oct. Before going in the pit ~ Feb. 06 In the pit, same time as harness or before (?)

MTF migration: Data base structure defined, entering data.


13

Electronics installation

Type 1: Completed Jan. 24, 2005

Type 2: Side A (2B): 18 modules

installed 22 boards in repair

process, ~ 10 finished Side C (2F): started stuffing at

ACAMAS. Should have pre-series at CERN ~end of Feb.

Type 3: Side A (3B): Pre-series at

CERN and tested. Feedback to ACAMAS. No known issue.

Side C (3F): All bare board received. Need to start pre-series.


14

Electronics schedule

3B will be the next to arrive (followed by 2F and 3F) and available for installation ~April

11. After that we will be saturated with boards. Installation is the slowest part.

3 weeks per side for type 2 1 month per side for type 3

Will need to run more than one shift to finish installation in June.


15

Services Manifolds


16

Sector Tests


17

Current Integration Schedule


18

Summary

All modules installed! Electronics installation is well under way.

All type 1 installed >1/4 type 2 installed.

Parts, procedures, and drawings are in good shape Manifolds could cause delays and need to be

carefully followed. Active Roof Boards remain the critical path and

need to be carefully followed Fuse problem need to be solved

chiho wang atlas trt duke university cern, feb. 2005 1 trt barrel assembly status & schedule...

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