Revision as of 16:31, 11 June 2015

June 11, 2015 Drift Chamber meeting

Connection

CDC analysis update (Beni, Simon)
1. Alignment: Fall'14: [2] Spring'15:[3]
FDC analysis update (Lubomir)
- Up/Down strip asymmetry [4], [5], [6], [7], [8], [9], [10], [11]
Electronics
Engineering
- Power outage preparations
Other

@@ Line 22: / Line 22: @@
 = Minutes =
-Participants: Curtis, Naomi (CMU), Sean (NU), Luke, Fernando, Mike, Dave, Chris, Nick, Simon, and Lubomir (JLab).
+Participants: Curtis (CMU), Sean (NU), Eugene, Luke, Dave, Chris, Nick, Simon, Beni, Fernando, and Lubomir (JLab).
-== Gas puzzle ==
+== CDC analysis update ==
-- Last CO2 results linked above. CDC percentage was stable during the run at ~52-53% level. After the end of the run the sensor was moved to the tagger hall and connected to the spare package with 40% CO2, but it was showing 37-38%.
+- Simon showed new alignment results and compared them to the results from the fall 2014 run.
-== CDC update ==
-- Mike showed results from the spring run for the CDC efficiencies (linked above) as function of distance to the wire and path length. Compared to the fall run and taken into account that the lower gain (due to the gas having more CO2) there's effectively increase in the efficiency thanks to the HV filter boxes. Two HV card showed some problems at the end of the run; Mike will look at this.
 == FDC update ==