[Hallc_running] [New Logentry] RC Daily Update

[dhamilto at jlab.org]

Logentry Text:
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Status:
- Production data-taking continues with the SHMS now at 9.79 degrees.
- There were problems with the beam overnight (halo trips), which are now being investigated.
- An arc energy measurement is planned for today when the beam is back to being stable.
- We now have a better understanding of the behaviour of the normalized kaon yield as a function of beam current at these very high accidental rates, which has helped determine optimal running conditions.

RC Meeting:
- There will be an RC meeting today at 4:15pm, second floor counting house.

Notices in effect for shift crews:
- Shift leaders, please fill out the check list once per shift.
- Shift leaders, please do a quick cross-check of the BTA numbers against your shift summary.
- Check that the pre-scaler gui is active and hasn't frozen / doesn't need re-started.
- Be on the lookout for any errors when running the replay, particularly errors concerning missing reference times.
- Note the new beam positions for this energy (on the whiteboard / note on wall)
- NB If the HV trips for SHMS S1Y5B contact Simona M. '''DO NOT change the HV from the nominal value!'''

Planned accelerator configuration changes:
- Energy change on Monday, 8am.


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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/3634757
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