CDC recent run drift times
From GlueXWiki
Fitted drift time function to straws in run 2451, picked straws with tmax slope < 30, used same straws for subsequent runs. Used same hit thresholds & window for all runs.
Run 2451
First run of 2015. Feb 7. Increased sparsification thresholds from 7sigma to 18sigma
Garfield 5475-4525 Ar-CO2 has tmax ~560ns
Run 2551
After disengaging the alcohol bubbler. March 2-3 2015
Run 2560
After changing the CO2 gas factor from 0.773 to 0.74
Run 2616
After changing the gas mixer MFCs from master/slave to independent, March 11
Run 2617
March 11
Garfield 5200-4800 Ar-CO2 has tmax ~ 595ns
Run 2619
Run 2644
After moving CO2 controller from ch2 to ch4 and decreasing sparsification thresholds
Run 2649
After returning CO2 controller from ch4 to ch2