...
11:55 Lost beam for a couple of minutes but it came back up when Carsten called.
12:52 MC called to say one of the klystrons in the injector is missing triggers so the beam might be coming in and out.
12:57 Stopped run 543 to change HV back to 100V.
13:40 Timon finished remotely tuning the SLAC module A97 but when a run was started there were no hits seen by the module and there were some infrequent readout errors (received data not valid). Timon is attempting to fix the problem but for now only the LBL module A54 is being run.
| Run | Start | End time | #events | RD53a DUT | Particle rate | Comments | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 541 | 11:48 | 12:22 | 10k | C | 280hit/plane | HV: 60 Lost beam for a couple minutes at beginning of run. | |||||||||
| 542 | |||||||||||||||
| 12:23 | 12:56 | 10k | C | 340hit/plane | HV: 60 | ||||||||||
| 544 | 13:01 | 13:34 | 10k | C | HV changed back to 100V for this and rest of runs | ||||||||||
| 546 | 13:40 | 13:45 | 1.5k | C, D | Timon tuned SLAC module(D) but when the run was started no hits were seen and some sparse readout errors showed up. | ||||||||||
| 552 | 14:11 | 14:44 | 9.9k | C | |||||||||||
| 556 | 15:45 | 16:19 | 9.9k | C | 575hit/plane | Changed angle to 60 degrees. SLAC module not connected; can't mount due to short screws. Forgot to reset histograms before start; rest around 800-900 events. | |||||||||
| 558 | 16:32 | C | 20hits/plane | Asked for smaller number of particles; aiming for MIMOSA->30 particles and RD53A->20. | |||||||||||