[Primexd] [Revised Logentry] Suspicious channel in the inner FCAL ring

[Colin Gleason]

This looks channel looks ok now. I'm guessing it had dropped HV for a small
amount of time then recovered. I will keep an eye on this channels
stability and remove it if it keeps dropping HV.

On Sat, Mar 2, 2019 at 9:50 PM <somov at jlab.org> wrote:

> Suspicious channel in the inner FCAL ring
> <https://logbooks.jlab.org/entry/3662239>
>
>    - Edit
>    <https://logbooks.jlab.org/entry/3662239/edit?destination=email/send>
>    - Delete
>    <https://logbooks.jlab.org/entry/3662239/delete?destination=email/send>
>
> Lognumber 3662239 <https://logbooks.jlab.org/entry/3662239>. Submitted by
> somov <https://logbooks.jlab.org/user/somov> on Sat, 03/02/2019 - 21:46
> <https://logbooks.jlab.org/entries?start_date=1551577607&end_date=1551584807&book=HDCCAL&book=HDLOG&book=HDTRIGGER>.
>
>
> Last updated on Sat, 03/02/2019 - 21:50
> Logbooks: HDCCAL <https://logbooks.jlab.org/book/hdccal> HDLOG
> <https://logbooks.jlab.org/book/hdlog> HDTRIGGER
> <https://logbooks.jlab.org/book/hdtrigger>
> Entry Makers: somov
>
> There is one suspicious (dead) channel in the inner FCAL ring. This
> channel has rather large current (about 4 mA).
> I noticed the problem starting from run 61357 (may be it happened
> earlier). Colin, please check this channel on Monday,
> likely we'll need to replace the base.
>


-- 
Colin Gleason
Postdoctoral Fellow
Indiana University
Department of Physics
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