Run Planning Meeting Notes, Mar 21 - Mar 27, 2019

• Run_Coordination_Meetings:Spring2019_Run
• PrimEx daily meeting
• PrimEx-η run plan
• Production runs, number of triggers
• Trigger counter
• To join via a Web Browser, go to the page https://bluejeans.com/660743227

Thursday, Mar. 21 at 08:45

1. Past 24 hours:
   • RF recovery during the day shift
   • Beam recovery delayed due to (1) issue in the injector, resolved by evening, then (2) UPS battery needs replacement in the north linac.
2. Issues
   • low counts seen in bcal sector (logbook entry 3670196)
3. Reports
   • helium target refilled, ready
   • trigger rate and beam flux history for Spring 2019 run
4. Today:
   • Production: 200nA, Al 10^-4
5. Run Plan
   • Production running: when beam returns, check beam conditions as follows:
     1. do harp scans, both accelerator and Hall D radiator
     2. check radiation monitor rates in tagger hall and Hall D
     3. verify transmission in PSC and PS coincidence rates @ 200nA, 1e-4 radiator
   • Beam studies planned for day shift on Monday
   • RF Recovery scheduled for Tuesday

Friday, Mar. 22 at 08:45

1. Past 24 hours:
   • beam recovery, conditions checked, running resumed.
2. Issues
   • HV tripped on two inner FCal blocks (logbook entry 3670196)
   • HV in CDC tripped, without alarm! (logbook entry 3670885)
3. Reports
   • collimator transmission drops again (logbook entry 3670862)
4. Today:
   • Production: 200nA, Al 10^-4
5. Run Plan
   • Production running continues
   • Beam studies planned for day shift on Monday
   • RF Recovery scheduled for Tuesday