Minutes of the Tracker Meeting
December 2, 2004
Brief minutes from today's short Tracker Telcon
w/INFN.
Sandro reported that the wrong proforma
was sent by Jeff Tice for EGSE recent shipment. It apparently was a duplicate
of the previously sent EGSE proforma. The materials
are stuck in customs until the correct proforma is
provided by Jeff.
JEFF HAS SENT AN UPDATED PROFORMA, ACTION CLOSED.
Tower A status-
Tower is assembled.
Sidewalls installed.
CMM started.
ISSUE-
NCR & MRB REQUIRED IMMEDIATELY!!!
(note: I may have lost some of the
detail in translation)
2 trays signals lost after tray thermal.
Failure is wirebonds between
ladders (?) between 2nd and 3rd SSD. Bottom tray lost 30 channels Heavy tray
top side lost 300 channels. Loss detected during xy
scatter plot. These two trays have no spares. They could not be changed out
prior to stack.
Total loss of channels is 1.5% of tower.
ACTION- INFN will generate an NCR.
We need to hold an MRP tomorrow morning to disposition and
progress tower A.
EMI preps needs to be finalized.
Discussion focused on problems to implement on Tower A and
difficulty in general. Tom Himel has sent an e-mail describing preps required.
INFN requested formal design detailing EMI preps required. Painting (black
epoxy paint) of top tray appears to also be an issue. INFN does not have the
paint, facilities, etc. currently to perform painting operation. Mike Foss will
start work on EMI preps next Tuesday (after completion of split flex cable
design).
Agreement that for Tower A- It would be acceptable to proceed thru vibe and T/V without EMI preps and paint. Jack
Goodman was consulted later in the day and he concurs.
This topic will take some concentrated effort with Tom Himel
and team to get all details worked to closure.
In abbreviated notes, that about covers the meeting.
It was short because we were displaced by monthly review.
D.W. Rich