Revision as of 10:48, 6 November 2021

MCC whiteboard Meeting Bluejeans 660743227 Trigger Counter

Monday November 08

1. Last 72h:
   • Accelerator beam energy change started Friday 8am
   • New run period started: 2021-11, runs 90000+
   • Solenoid coil4 vacuum degraded on Friday afternoon [1], lead to dump at 9pm [2]
   • Accelerator reconfiguration completed on Sunday
2. Reports
3. Issues
4. Plans

Friday November 05

1. Last 24h:
   • 7h accelerator down time due to power outage [3]
   • New modules installed in FCal2 test stand [4] (Sasha)
   • Beam restored around 2pm
   • Trigger studies with 20nA and 100nA (Sasha)
   • Recorded 800M+ events with full lHe4 target
   • 8am: PrimEx EoR
2. Issues: -
3. Reports:
   • Normalized rates [5] and beam energy [6](Alexandre)
4. Plan:
   • Beam energy change 11/05-11/07, start Friday 8am
     • Cancel shifts from Friday 10am
     • RadCon survey for tagger halld done at 8am, leave hall and tagger in controlled
     • Safety Walkthrough scheduled for Friday 2pm (Elton)
     • Installation of Youri's detector near the PS on Sunday, calorimeter test has to go today?
     • Maintenance of the A/C for the server room: cancelled
   • Start SRC/CT experiment on Monday
     • Wiki page
     • Morning meeting at same time, but new number: 497773790/1473
     • Do we want to start a new run period 2021-11?
     • Continue SRC/CT run plan discussion here

Thursday November 04

1. Last 24h:
   • Maintenance day
   • Replaced FCAL 15 bases [7]
   • Restored beam at 11:00pm
   • Harp scan [8]
   • Recorded 150M+ events with full LHe4 target
   • Several beam interruptions, currently loss of power, might take a few hours to restore
2. Issues:
   • CDC HV alarm at 2:45am, restored by itself for all but one channel (F:14), but HV OK, acknowledged
   • BCAL LED trigger script was off for runs 81702 and 82703. Switched on afterwards.
3. Plan:
   • Continue production at 200nA with the solenoid on
   • Beam energy change planned for 11/05-11/07, start Friday ~7am
     • Cancel shifts from Friday 10am?
     • RadCon survey for Friday morning is requested, leave hall in controlled, only survey tagger hall?
     • Safety Walkthrough scheduled for Friday 2pm (Elton)
     • EEL Closure from November 5th, 6pm to November 8th, 6am and November 12th, 6pm to November 15th, 6am