[Sbs_gems] [New Logentry] Hall access to work on GEMs

[a-onl at jlab.org]

Logentry Text:
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People involved : Vimukthi, Anu, Xinzhan, Bhashitha<br>
We made an access today morning to work on the GEMs. Following are the things we did;<br>
1. Isolate L4M0 and L3M3 so we can operate the other two modules that were coupled to it.<br>
2. Replace a gas filter on L6M0. Anu checked the gas flow for that module at both the input and the outputs<br>
3. We checked BigBite L1 problematic backplanes and apvs. There was one apv that was not seated properly on the readout connector. That backplane was not connected to an hdmi shifter. I mistakenly removed it while working on the gems without knowing that shifter serves a purpose. Pedestals are being retaken. Db and coda files will be updated soon after pedestal analysis is completed.<br>


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This is a plain text email for clients that cannot display HTML.  The full logentry can be found online at https://logbooks.jlab.org/entry/4287530
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