[Hallc_running] [New Logentry] RC daily update

[hszumila at jlab.org]

Logentry Text:
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Summary of ongoing activities:
-Aperture test showed that the obstruction in August is no longer present. Scans across 1 cm square were clear. Probably this was due to a nitrogen ice blockage that is no longer present. As such, when beam is back, the machine optics will be different from August since the beam won't need to be steered around this obstruction. 
-Plan is to lock up Hall C on Thursday afternoon.
-Priority is to send high current beam to C when establishing beam to the halls. 
-Dave Meekins will cool Hall C target on Thursday. 
-Accelerator scheduling meeting is at 1:30pm today. 
-Last night, Steve Lassiter was able to complete part of the small angle tests (SHMS only): https://logbooks.jlab.org/entry/3595208. It won't be necessary to turn off the HB when rotating. The testing while rotating the HMS to small angle was not accomplished due to the motor failing (preventing rotation). The motors will be replaced this morning with the old motors. SHMS pointing surveys will also take place today in the Hall. 
-Friday day shifts are on stand by for now, but things in the machine are looking good. We'll have a definitive answer on this shift after the 1:30pm meeting today. 

We will meet in the 2nd floor counting house room today at 4:15pm. Connection details are here: https://hallcweb.jlab.org/wiki/index.php/RC_daily_meetings_and_daily_runplan_fall_2018




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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/3595321
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