Fiber Tracker Meeting Minutes

boards were swapped over the holidays
Mike has fixed some boards, but is going on vacation for a couple of weeks starting this week
new procedure: run CTS at least once a week to keep spares "fresh". Make it a shifter task? Hope that the problem will be solved by board shakedown (problem is loose solder, etc.)

talk slides
"latched" boards can recover?
George: a bayonette has gone missing - need to figure out where it went
Drew: Did a count of "dead" channels while on shift. Before there were 29 dead channels. Now there are 208, of which only 8 are part of original 29
Fred: talked to Russ yesterday - making arrangements to warm up the test cassette and see what kind of gases it lets off.

slides unavailable
estimates done of gas permeation rates - probably should have pumped and purged during last warmup.
Russ found out that nitrogen does in fact contract when frozen
no large leaks found in the lid when 'sniffer'ed
one VLPC recovered between May 27 and June 22 - plot of May 31
another VLPC became unresponsive during this period, but recovered in fall shutdown
really recommend against unshceduled warmups right now.
showed plot of pressure dip (10/22/2003) and temperature at about same time

put in partially right map for thresholds, but ran into a problem with names.
Jadzia: you can't rename things. You can only delete and create new
no new problems, just running into old problems again
control over the system seems to be getting more unresponsive...?
keep having L2 problems - not all due to our mistakes
have new diagnostic tools in firmware
new single and dual electron terms are in
want to take another special run to get zero bias events to test crate x13 output
currently at a point where want to start to optimize - where do we want to be?