RC meeting and Run Plan, Sunday February 13th

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RC Report

• https://logbooks.jlab.org/entry/4130355
• RC: Sean Jeffas, sj9ry@virginia.edu

Summary

• Ran with low beam current most of yesterday, collecting 1.0C
• Ops says RF issues due to storms https://logbooks.jlab.org/entry/4129695, and beam improved overnight as storms subsided.
• Hall B requested IHWP change yesterday.
• MCC took beam away for several hours this morning to fix RF issues
• Jiwan fixed HCal readback issues - https://logbooks.jlab.org/entry/4130120
• Provakar moved the bad summing module to the top of BBCal - https://logbooks.jlab.org/entry/4130359

Issues

• BB GEM HV alarm went off but did not trip and everything looked fine. Likely just some transient fluctuation, https://logbooks.jlab.org/entry/4129914
• Target laser temperature alarms went off but returned to normal on their own, https://logbooks.jlab.org/entry/4130120
• HCal time shifted by 30ns. Simply restarting CODA brought this back to normal, https://logbooks.jlab.org/entry/4130175. Good catch by the shift lead, shift crews should always restart a run if they see this in the 50k replay.
• 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 maintenece Wednesday or Thursday

Data Collection and Polarization Status

• 30.2C of uncorrected charge for this kinematic (34.9C of corrected charge)
• Last NMR 48.7%

Other Topics/Status Updates

• Anything else?

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