Run Planning Meeting Notes, June 23 - June 29, 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


Friday June 24

  1. Last 24h:
  2. Shift Summaries
  3. Reports
    • MCC still recovering the machine. RF recovery turned out to be hard, did not finish that until around 8pm, then ops group started phasing up all the cavities. This is apparently almost complete but with no RF headroom. MCC would like to take another 4h to work on this but don't have all the RF group experts today. However they plan to replace an arc detector & look for low spot in a waveguide that might be full of water. Should have beam by 11am-12pm if nothing else breaks (their words).
    • MCC today & this weekend will try high current to XC. Monday spin dance for B. Hall C does not have any planned downtime.
    • Bleedthrough prediction from Hovanes
    • Beam structure from Beni
  4. Issues
  5. Plans
    • Richard (when is convenient for this?) - repeat 2 rows in microscope scan
    • Return to production. Cycle through 240M events for each of 45perp, 45perp, 135para, 135para, then 60M events on the AMO on the goniometer.
    • Production as above should be our default for 6d, with 1d on empty target.
    • Try again for the TAC run on Friday or at the weekend. Sasha would like 1-2h to set up, then some time to evaluate before taking the rest of the data.
  6. Commissioning steps temporarily postponed:
    • Flux optimization/Act .Col. calibration
    • Bleed-through test: measure bleed-through with A slit as usual and A slit completely closed to see whether using B slit would help.

Thursday June 23

  1. Last 24h:
  2. Shift Summaries
  3. Reports
    • From MCC: Reminder that 911 from lab phone is forwarded to normal 911 and also automatically informs the crew chief, guard shack, etc that there's an emergency, crew are CPR qualified & have AED. This doesn't happen from RC phones (or cellphones). No problem w 911 from other phone; if there's a lab phone handy it saves some time.
    • Power shed 3-4pm today, beam restoration likely 5pm+.
    • MCC planning to raise the current to Hall C.
  4. Issues
  5. Plans
    • No beam until swing.
    • Walk-through at 11am
    • Site exit opposite Tech Center closed most of the day - need to exit by resfac or Lidl.
    • Put the target back (done).
    • Sasha - check straight target configuration.
    • Sasha - make new CPP configuration as requested by email
    • Richard - repeat 2 rows in microscope scan
    • Return to production. Cycle through 240M events for each of 45perp, 45perp, 135para, 135para, then 60M events on the AMO on the goniometer.
    • Production as above should be our default for 6d, with 1d on empty target.
    • Try again for the TAC run on Friday evening
  6. Commissioning steps temporarily postponed:
    • Flux optimization/Act .Col. calibration
    • Bleed-through test: measure bleed-through with A slit as usual and A slit completely closed to see whether using B slit would help.