[Hallc_running] [Revised Logentry] RC Daily Update

[simona at jlab.org]

Logentry Text:
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Yesterday during the accelerator down we took an opportunistic controlled access to finish certifying rotation for the 26 deg angle of separation between HMS and the NPS calorimeter: https://logbooks.jlab.org/entry/4197733

When OPS went ahead to switch us to beam permit at our request the hall got dropped to restricted because of SHMS hut door issues: https://logbooks.jlab.org/entry/4197718 
I went in and saw that the door was indeed slightly open although the intention was to have it closed: https://logbooks.jlab.org/entry/4197728
One *assumption* is that the door opens during the rotation of SHMS. The Spectrometer support group and Steve Lassiter are working to understand why this is happening so it gets fixed.

We got beam back sometime during the swing shift last night. We had harp scans done and we slightly changed the beam positions for the target orbit lock to better center the beam on the Carbon hole target: https://logbooks.jlab.org/entry/4197966

We resumed production data taking at KinC_x60_3 around 9 pm. 

We took data overnight until the 5th pass vertical separator went off towards the end of owl shift: https://logbooks.jlab.org/entry/4198343

Once the separator issue was cleared we got beam back to the hall around 8:45 am and resumed production data taking.

There may be a (hopefully) short interruption in beam delivery to all halls sometime today so that the injector experts can work on beam orbits to ensure beam stability over the weekend.

There will be a RC meeting at 11 am: https://jlab-org.zoomgov.com/j/1617015555?pwd=L09IQ216dml6ZmM5ODExVjFsMX...
Meeting ID: 161 701 5555
Passcode: 288953

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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/4198436
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