RC meeting and Run Plan, Wednesday February 15th

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RC Report

• https://logbooks.jlab.org/entry/4131947
• RC: Sean Jeffas, sj9ry@virginia.edu

Summary

• Ran with ~30 uA beam current most of yesterday, collecting 0.7C
• At 9 am the accelerator went down due to many RF issues. Will be down until 8 pm.
• BBCal block now look good - https://logbooks.jlab.org/entry/4130863
• GEM experts are in the hall working on SBS GEMs

Issues

• DAQ crashed due to ROC16 SLOT21 BUSY. Simple reset solved the issue. - https://logbooks.jlab.org/entry/4130714
• BB GEM HV alarmed but did not trip. Likely some transient spike, nothing to worry about - https://logbooks.jlab.org/entry/4130840
• Target windows computer wants to update on February 20th

Current Status

• Running 45 uA on He3

Run Plan

• Continue running 45 uA on He3
• Accelerator will prioritize beam and not have any maintenance days this week
• Hall B wants to change the IHWP on Friday

Data Collection and Polarization Status

• 30.9C of uncorrected charge for this kinematic (35.8C of corrected charge)
• Last NMR 50.0%%

Other Topics/Status Updates

• Anything else?
• Bill wants to change the raster settings after some analysis

Requested Accesses to the Hall

• Jack would like to collect some cables
• GEM team need like a 3-4hour access for the SBS GEMs DAQ troubleshooting