Difference between revisions of "CDC recent run drift times"
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| Line 75: | Line 75: | ||
<h2>Run 2649</h2> | <h2>Run 2649</h2> | ||
After returning CO2 controller from ch4 to ch2 | After returning CO2 controller from ch4 to ch2 | ||
| + | {| border="0" cellpadding="2" | ||
| + | |+ Hit thresholds 180-100-25, window 44-150 | ||
| + | |- | ||
| + | |[[Image:cdc_run2649_t30.png|thumb|x200px|Drift time fit ]] | ||
| + | |[[Image:cdc_run2649_t30z.png|thumb|x200px|zoomed in]] | ||
| + | |[[Image:cdc_run2649_amp.png|thumb|x200px|max amplitude - pedestal]] | ||
| + | |[[Image:cdc_run2649_ped.png|thumb|x200px|pedestal]] | ||
| + | |} | ||
Revision as of 08:34, 27 March 2015
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
Last run of 2014
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
