RC meeting and Run Plan, Friday November 4th

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Return to the RC Meeting Calendar

RC Meeting Information

Time:at 3:30pm today

  • Location: Counting house conference room

Useful Links

Current Status

Weekend Shifts

  • Shift leader and target operator shifts are on standby for the weekend. At this stage, we will require SL and TO to return Monday Owl, but SL will likely be put on stand by through Monday.

Hall Status

  • Hall in restricted access for continued configuration change operations
    • Beamline removed
    • Magnet move underway
    • Possible updates from Jessie
  • Last update: A final RF module needs replaced in replaced BPM VME crate. The work will need to be validated by Simona.
    • Possible status update from Simona

Open Issues

  • Compass field measurements were not successful. Gradient measurements will be used in stead. Possible updates from Bogdan.
  • Oven heater variac controllers need replaced and tested. Possible updates from Todd.
  • UVA optics assembly removed from optics enclosure and tested at EEL. Possible updates from Gordon.

Polarized Target

  • Current Polarization: N/A (Target not installed at present)
  • Hourly screenshots suspended until target installation. Lasers locked out.
  • UVA optics assembly removed from optics chamber and moved to EEL with Adam's help for tests. Possible updates from Gordon.

Subsystems

  • Any Updates?

Future Plans

  • Hall in restricted access for remainder of configuration change
    • Hall access is open to subsystem experts after 1700 and before 0800
    • Please check with RC for access beyond DAQ bunker during the day


Other Topics

Experimental progress (for MCC planning meeting)

  • 6.1% of accumulated charge for PRODUCTION data (13.55 Coulombs out of 232)
  • 28% Experimental run time (40 out of 141 days)

Run Plan After Configuration Change

Need updated 'standard' run plan for 3-pass data taking

NMR measurement Restore beam

Run Plan 1.) He-3 runs, at 45uA of beam current. Use ps3==0, ps5=12, all others -1. Take four runs that should each last for one hour. 2.) Move the target to the pickup coil position, and the TO should run an NMR sweep to measure the polarization. 3.) Return to step 1.)

  • Keep an eye out for drifting BPM positions
  • Log all DAQ crashes in the excel worksheet along with the reason for the crash
  • If beam has been down due to accelerator issues perform a checkout of the beam profile by doing harp scans and check beam centering on target using the Carbon hole target, see Simona's procedure: [1], If in doubt about whether you should go through the beam checkout procedure, call this number: 7578693131.
  • Cross check the rate with what is expected: [2]
  • Cross check with the expected ion chamber readings: [3]

Notices in Effect for Shift Crew

Current Issues

  • Given the delay and unfeasibility of completing the configuration change tomorrow, when can we expect to complete the configuration change?
  • Shift Openings: Wednesday OWL, Thursday OWL. [4]

Planned Accesses to the Hall

  • In Restricted Access. Configuration change ongoing.

Special Requests

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