Revision as of 18:48, 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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 == CDC update ==
-- Beni showed a plot, charge integral vs drift time, and slices of it, integral distribution for different drift times (plots attached). For smaller drift times you see the pedestal and the peak well separated and the amplitudes going down exponentially. For big drift times one starts seeing a second bump (not clear why!), while the first peak gets closer to the pedestal (because the track length inside the straw gets shorter)
+- Mike presented a report linked above: he and Simon found a parameter in the time-based track reconstruction that was not set correctly. After fixing this the efficiency is much higher (in the >90s% region)
 - Mike was working on a tool to view the signals from the fADC125 modules in a single crate using the built-in pulser. Mike is also working on the CDC efficiency, it's >90% if require the track to be at <1mm to the wire.