Revision as of 19:35, 15 January 2015

January 15, 2015 FDC+CDC meeting

Connection

File:CDCUpdate15Jan2015.pdf (Mike)
FDC update
- Tests with pulser logbook entry,[2],[3],[4] (Vlad)
- Effect of the alcohol [5],[6] (Lubomir)
Electronics fADC125 replacements (Cody)
Engineering Chiller Interlock (Dave)
Other

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 == FDC update ==
-- Vlad used Mike's tool to test the bad FDC channels.
+- Vlad used Mike's tool to test the bad FDC channels (see logbook entry). Out of 8 channels, 7 could not see the pulser signal (applied at the input of the pre-amp), i.e. having issues with the pre-amp, cable, connector or the fADC. Chris and Nick will check the 3M connectors for these channels.
-- Vlad showed latest results from gain calibration studies. There's some systematics for the "bad" channels with gain coefficients >3, but the normal channels are stable. Vlad has a list of 8 channels showing no signal at all in the fADC125, that are to be studied with the Mike's tool. Vlad will have soon the first table with the gains to be implemented by Simon in the standard code.
+- Lubomir simulated with Garfield the effect of adding 1% propanol to the standard gas of 40/60 Ar/CO2. From the attached plots one can see
 == Electronics ==