Run Planning Meeting Notes, July 14 - July 20, 2022

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Meeting are via ZoomGov: connect (Meeting ID: 160 199 0060 / Passcode 8394)

MCC whiteboard

Hall D counting room white board

Spreadsheet with list of runs

Sunday July 17

Past 24 hours

  • Production on Full Pb target 30 nA (~2.1 B events)
  • Hall C is now running at 65 uA.
  • Evening temperatures impacted cooling in building #38 (South Linac - east end). Supplementary cooling was added and stabilized the situation, but facilities may need to help with additional cooling. [Challenges of running through the summer.]

Shift Reports

Reports

Issues and Features

  • Stability of beam position at Active Collimator
  • Add the TOF and CTOF trigger rates to EPICs/archiver

Plans

  • Production data on Full Pb target

Saturday July 16

Past 24 hours

Shift Reports

Reports

Issues and Features

Plans

  • Production data on Full Pb target

Friday July 15

Past 24 hours

  • RF Recovery Day
    • Productive Recovery
    • Slow orbit drifts investigated. Source: changing up of a screen. Longterm solution will be implemented with long shutdown, requires vacuum work. Short-term: increase apertures, possibly this weekend.
    • Restoring to more stable configuration. Delivered 70 uA to Hall C for short period and ran 48 uA overnight.
    • RF trips at about 13 trips/hr.
  • Maintenance
  • Program when beam comes back
  • Solenoid ramped up to 1350 A (Tim)
  • Beam back about 9 pm.
  • Production on Empty target 30 nA (~0.08 B events)
  • Production on Empty target 60 nA (~1 B events)

Shift Reports

Reports

Issues and Features

Plans

  • Need about 6 hours to complete present cycle on empty target.
  • Insert Full Target Pb (mid afternoon)
  • Change SD card in FDC crate if Cody is available.
  • Harp scans
  • Production

Thursday July 14

Past 24 hours

  • Request for a Schedule Adjustment from Jul 27 to Aug 17 has been submitted.
  • Production on Full Pb target (~0.5 B events)
  • Install Empty Target (12 pm)
  • Production on Empty Target (~0.9 B events). Need about twice that. After checking statistics today, I suggest we stay on Empty Target, but run at 60 nA after maintenance.
  • Storm Takes Down Accelerator
  • Smooth, but trippy, beam after recovery. Trips are at about 15-20 trips/hr

Shift Reports

Reports

  • We would like to add the TOF and CTOF trigger rates to EPICs/archiver

Plans

  • RF Recovery today (beam down 8.15 till ~5pm)
  • HD Refrigerator Maintenance
  • Access for Sasha and Vlad to install modules in PS Test Stand
  • Nick to work on DIRC environment
  • Following Maintenance: Plan to continue with Empty Target data to complete the data taking cycle and then continue at 60 nA