[Sbs_gems] [Revised Logentry] Follow-up Re: Follow-up Re: Question UVA UV GEM

puckett at jlab.org puckett at jlab.org
Sun Dec 5 11:30:03 EST 2021


Logentry Text:
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I would not lower the HV on this GEM. The HV setting on this GEM was already pretty close to optimal from the efficiency scan. Some saturation in some small fraction of events is inevitable. This plot does not indicate any problem. I do NOT think the gain is too high. In, fact, you see this in some fraction of events in EVERY module: 

https://logbooks.jlab.org/files/2021/12/3956832/summaryPlots_12569_GMN_critical.pdf

So let's please understand what we're looking at before we start recommending changes in the experiment running conditions.

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