[Hallc_running] [New Logentry] RC daily update

sjjooste at jlab.org sjjooste at jlab.org
Wed Oct 17 15:05:02 EDT 2018

Logentry Text:

Yesterday, accelerator had issues getting a good beam back after RF recovery. They finally settled on 50uA as maximum stable current, and we requested 45uA to limit the SHMS singles rate to below 700kHz in the current setting. Today around noon accelerator went down to fix some more Hall B related issues, as well as do some work on the accelerator. This is still ongoing.

While we were up data taking went smoothly at 45uA. Current ETA to resume physics running is up in the air.

As of right now, we have collected 38% of the statistics goal for LH2 on Q2=5.5, W=3.02, theta_Shms=6.49.
We were originally planning to move to the next kinematic setting around the start of swing, but we will most likely push this to 9PM. 
After that we will try to get a minimum amount of data in the last two remaining settings. You can find the tentative run plan for the Kaon LT End Game here:

Vladimir is the new RC, and will host the meeting at 4:30PM today. He will discuss an important issue with the aerogel installation related to the upcoming SIDIS experiment.

To join the Meeting:

To join via Room System:
Video Conferencing System: bjn.vc -or-
Meeting ID : 861439920

To join via phone :
1) Dial:
+1.408.740.7256 (US (San Jose))
+1.888.240.2560 (US Toll Free))
+1.408.317.9253 (US (Primary, San Jose))
(see all numbers - http://bluejeans.com/numbers)

2) Enter Conference ID : 861439920


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/3610952
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