[Halla_running] [Revised Logentry] RC Daily Update

[tianye at jlab.org]

Logentry Text:
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The production ran smoothly during yesterday's day shift. We requested an increase on the current ramp rate (10uA/s to 15uA/s) and the initial attenuation setting ( 40uA/s instead of 2uA/s) to save some time from beam trips. The average efficiency for yesterday's DAY shift is ~55%. We lost beam from 15:46 to 19:32 yesterday afternoon, which is due to the 1L19 cavities faulting from a camac crate problem. After the standard spot size check, we went back into production at 20:16. The average efficiency of swing is ~36%. During today's owl shift, the beam got trippy due to Upstream Halo & 3C03 trips. The average efficiency is 44% for the owl shift. Accumulated charge from yesterday's Day shift to today's Owl shift is ~5.8C. 

Moller measurement is currently ongoing. Plan is to continue production after Moller measurement . 

We are going to discuss the plan for this weekend during today's RC meeting. 

We will have our remote meeting at 3:30 PM today. Bluejeans link for participants: https://bluejeans.com/256205934 

Ye Tian 
(Hall A Run Coordinator)

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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/3840980
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