[Halla_running] [New Logentry] RC daily update

[efuchey at jlab.org]

Logentry Text:
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Yesterday day, MCC took the beam away for the whole day for trouble shooting BLM trips issues.
Beam came back at the beginning of swing shift, which was pretty productive (66%).
MCC had issues with unstable cryonmodules at the end of swing shift => 2h30 down time extended onto owl shift.
When beam came back, left Q2 tripped (https://logbooks.jlab.org/entry/3608511). Switched PS and regulator Off; then switched PS on and cycled Q2 at 1600 A; then, turned regulator on.
*That has happened again this morning (https://logbooks.jlab.org/entry/3608690). Jack's take on it (https://logbooks.jlab.org/entry/3608701) is that the issue causing this does not endanger the PS nor the magnet - and would take a solid 4h to be fixed. I infer we have to leave with it and plane to have it fixed for the next down time during which we can open the hall (which is NOT next monday!)
Apart from that, owl shift was smooth, apart from a new occurence of the target ladder temp readback issue (https://logbooks.jlab.org/entry/3608554). I would recommend making another IOC reboot during a significant beam down time (1h).


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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/3608725
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