Tracker Status

May 21, 2004

Tracker-Grid Interface

- Some progress was made on understanding torque during static

testing.

- 34 cone-stud hardware sets are delayed until next week.

- Good progress is being made on the GSE.

Bottom/Top Tray Panels

- Top tray assembly drawings went out for release. A few details

need closure on the bottom tray assembly.

- Assembly tooling is machined and was checked dimensionally this

week.

- The static test fixture plate was received at SLAC and inspected.

- Titatium for inserts should be in hand by today, and machining will

be done next week.

Mid Tray Panels

- 3 more panels were vibration tested with excellent results.

- The T/V procedure for panels is out for release and the setup is

ready to go at Roma-II.

- Work is in progress to peel test the black paint to resolve an NCR.

MCMs

- Well more than enough for Tower A are at SLAC.

- Production and test is going smoothly now at Teledyne. The incidence

of ASIC failure on MCMs at MIP-2 testing is zero for the past couple

of weeks, after visual inspection of all the die.

- 15 MCMs will complete burn-in tomorrow, then final test. At least 11

of them should ship on Monday to Pisa (4 have an open NCR but are

probably okay---TBD).

- NASA QA reviewed Teledyne operations yesterday.

Tray Assembly

- G&A should complete next week tests of the new tooling and

procedures for MCM mounting.

- Material should be available today for machining the TMCM pins.

- Work is in progress at SLAC on updating the relevant assembly drawings.

- The procedure document is still in work.

Sidewalls

- Prepreg for the first couple of towers is in transit.

- The fabrication specification document is out for release.

- Drawings have been released.

- Titanium washers are being procured and should arrive May 25.

Flex-Circuit Cables

- Finally the drawings are out for release.

Tower Assembly and Alignment

- A conceptual design was completed for an aluminum part to go on

the top of the tower to fasten the cable ends and also support

the alignment retroreflectors.

- We determined that the tower mockup being assembled by AI&T can

and will be used to debug and prove the alignment software and

procedure.

Vibration Test

- The vibration fixture drawing is released and procurement in

progress.