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 overnight increasing to 40 uA during the dat, collecting 0.8C
• Zeke and Anu got SBS GEMs working during the downtime - https://logbooks.jlab.org/entry/4131150
• SBS GEMs were included in the data overnight with minimal issues.
• At 2 pm one SBS GEM HV started acting up and is being investigated - https://logbooks.jlab.org/entry/4131946

Issues

• HCal ROC busy, simple reset fixed - https://logbooks.jlab.org/entry/4131218
• Hodoscope SL4 tripped twice, came back online right away - https://logbooks.jlab.org/entry/4131233
• One SBS GEM was tripping, needed to increase the trip time - https://logbooks.jlab.org/entry/4131581
• One GEM reset needed to fix the DAQ - https://logbooks.jlab.org/entry/4131631
• Currently one SBS GEM HV is no working - https://logbooks.jlab.org/entry/4131946

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