CDC gain calibrations
From GlueXWiki
Early runs 10391-10913
- fadc thresholds were high and for runs with high atmospheric pressure the minimum ionizing peak in pulse amplitude was partly or mostly below threshold
- Chose straws 501-510 as these had high gain and their MIP was visible in most runs, found the scaling factor to match their MPV for the run of interest to run 11059, scaled the individual gains for run 11059 to give gains for the run of interest. Chose run 11059 as it was the next run after the thresholds had been adjusted.
Disconnected straws: 709, 2384, runs 10331 on.
Missing straws:
3150 disappears during 10456 to 10464 and does not return with the rest in 10491 straw 3151 runs 10331-11059 straw 2873 missing in 011059 straw 2964 missing in 011059 straw 3372 missing in 011059
Low gain straws:
straw 244 runs 10331-11059 n= 2977 runs 10331-11059 n= 3178 runs 10331-11059 Low-gain HVB group 3064-3070 rocid==26 slot==15 chan 48+ Low-gain HVB group 3270-3277 Low-gain HVB group 3479-3486