[Halla_running] [New Logentry] RC daily update

[efuchey at jlab.org]

Logentry Text:
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The past 24 hours were not good in terms of available beam. First, trips are numerous (15-20 trips an hour...) due to RF (~5/h), and MPS (10-15/h...). see https://logbooks.jlab.org/entry/3607594
MCC wants to tackle the latter (hopefully with no impact on running) by adjusting BLMs and Ion chambers thresholds...
Yesterday day: no major down time, but numerous trips.
Yesterday swing: 
* magnet IOC (iocnl3mag) on north linac down (https://logbooks.jlab.org/entry/3607316): 1h down time + ~30m trying to get back to 22.5 uA;
* cryomodule 2L22 (south linac) IOC drop (https://logbooks.jlab.org/entry/3607341): 1h40 down time.
+ multiple beam trips...
Today owl:
* 5th pass RF separator (https://logbooks.jlab.org/entry/3607424): incident lasted ~4 hours total, but we got some beam during the event: ~2h40min total down time
* North linac PSS A chain drop (https://logbooks.jlab.org/entry/3607489) 2hours down time.

As of now, we've been down for a solid 1h30, for issues with 2nd pass separation, and other various checks. MCC is sending testing beam.

No major issue on our end. The target issues we had yesterday owl (e.g. https://logbooks.jlab.org/entry/3606958) have been tackled by target IOC reboot (https://logbooks.jlab.org/entry/3607273). We had not had any such problems since then.
Plan today is to keep taking as much beam as MCC sends us - hoping it will be more than yesterday.


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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/3607638
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