[Halld-cal] [New Logentry] BCAL pedestals monitored overnight

[dalton at jlab.org]

Logentry Text:
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A pedestal run was taken overnight to monitor the BCAL pedestals.  The data was taken at a rate of 0.756 Hz for a total of 22 hours leading to ~60000 events.  The plots show the pedestals as a function of event from about 1:20 pm on 5 May.  Each page is for the 16 channels on a single ADC.  They were chose beecause they contained a channel with a notable feature but on the whole this is a representative sample.  There is a clear wiggle with a period of 3 hours and a couple minutes until about 4 am when the behavior flattens out and becomes less regular.  At the most severe, the excursion is more than 6 channels peak-to-peak although there are also a few channels with negligible drift.  There is in addition, 1 channel which appears to have a discontiuity in it.

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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/3285334
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