kilo-pairs 13388 45.7 13389 43.9 13390 43.7 13391 44.3 13392 40.5 13393 43.0 13394 35.8 13395 Mostly beam off 13396 41.6
00:17---Compton HV trips. HV trips again at 00:22. Again at 00:27.
00:32---Start new HAPPEX run, 13389.
00:33---Compton ROC6 stops responding. Power cycle ROC6 with hareboot4 "outlet 6". Do "coda reboot"
Compton HV trips at 00:45. Compton HV trips again at 01:02. Again at 01:07. Again at 01:13.
00:14---Compton runcontrol screen just disppeared. Session closed from adaql3 to the compton computer. Restarted runcontrol and started a new Compton run.
Compton HV trips at 01:17. Again at 01:21. Again at 01:26.
01:29---Start new HAPPEX run, 13390.
01:32---D.Wang takes over the Compton DAQ.
01:42---Compton HV trips again. There was not a run in progress, so we can't see the rates in the archiver.
01:52---Take run 25079 to check spot++.
02:25---Start new HAPPEX run, 13391.
03:22---Start new HAPPEX run, 13392.
03:29---D.Wang is finished with his tests on the Compton DAQ. Begin Compton run 20508.
03:46---Compton HV tripped.
04:15---Compton HV tripped. Tripped again at 04:21. Tripped again at 04:30. Tripped again at 04:32. Tripped again at 04:40.
04:41---Start new HAPPEX run, 13393.
04:42---Take run 25080 for spot++ check.
04:49---Compton HV tripped again at 04:49. Tripped again at 04:58. Tripped again at 05:08. Tripped again at 05:12. Tripped again at 05:13.
05:16---Start new HAPPEX run, 13394.
05:16---Compton HV tripped again.
05:18---Started new Compton run, 20509.
05:22---Compton HV tripped again at 05:22. Tripped again at 05:24. Tripped again at 05:25.
OPS hasn't found any smoking gun for why we're getting the rate spikes. Sometimes they are associated with energy drifts, but not always.
Tripped again at 05:31. Tripped again at 05:32. Tripped again at 05:34. Tripped again at 05:37 Tripped again at 05:41. Tripped again at 05:43. Tripped again at 05:46. Tripped again at 05:47. Tripped again at 05:48. Tripped again at 05:49. Tripped again at 05:51. Tripped again at 05:53. Tripped again at 05:55. Tripped again at 05:58.
06:00---Call out to Alex.
Changed Compton HV to -1750. Move the table to X=53.50 Reduce HV to -1600 V. Reduce HV to -1450 V. Change attenuator to 1 and gain to 8.
OPS will try a pathlength check.
Alex will come in soon. If it trips again, leave it off until he gets in.
06:13---Start new HAPPEX run, 13395. Mostly no beam in this run.
06:41---OPS is done with the pathlength adjustment Sending beam back to us now.
Start new HAPPEX run, 13396.
06:50---The Compton rates are not stable, and don't show any difference between laser on and off. Alex was expecting to come in shortly.
06:57---Noticed the beam current was right about 96 uA. Request it be increased a little to be about 98 uA.
07:15---Alex arrives and starts to look at the Compton.
07:39---Start new HAPPEX run, 13397.