Revision as of 07:53, 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 but it still has not arrived.
   • 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
   • MCC still recovering the machine. Recover RF turned out to be hard, did not finish that until around 8pm. 8pm turned over to ops group, 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 IF the RF group experts are available.
   • 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.