Revision as of 03:38, 24 June 2022

↑ Back to Run Coordination Meetings:Summer2022

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:
   • Accelerator went down at 6:20 as planned.
   • RF recovery coupled with trying to get more beam to Hall C did not go quickly. We were promised beam after 5pm, then 7, then 1030, and then 4am!
   • Set target to full
   • Sasha modified the CPP configuration as requested Straight track config needs to be used, to get feedback from Lubomir.
2. Shift Summaries
3. Reports
   • Bleedthrough prediction from Hovanes
4. Issues
5. Plans
   • Richard (if not done during owl) - 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:
   • Inadvertent change to tagger magnet settings backed out
   • Target moved out
   • Richard took the microscope scan data needs another 20 mins
   • Bleedthrough beam current was very low
   • Thunderstorms made TAC run impossible.
   • Sasha configured the trigger for straight track running
   • Beam back near midnight but ran into DAQ problems.
   • Overnight empty target production
2. Shift Summaries
   • day swing owl early riser
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
   • DAQ crash ROCTRIG2 - called Sergey
   • DAQ lost comms with ROCBCAL11 - stop & restart DAQ fixed this
   • AD00C x position moving probably due to beam energy changing
   • (Tagger NMR)
   • (DIRC sensor)
   • (DAQ livetime)
   • (Beam position stability)
   • (U1-10-TOP MPOD crate)
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.