Good k-pairs Parity I_beam Run Total LHRS RHRS ------ ------ ------------- ----- ----- 14095 113 36.6 205.5 25639 5194 14097 113 30.4 235.9 25641 5196 14098 111 31.7 267.6 25642 5197 14099 109 38.5 306.1 25643 5198 14100 110 45.0 351.1 25644 5199 14101 110 8.7 359.8 25645 5200
16:01---Start runs 14096, 25640, 5195 for lumi HV adjustment.
16:08---Start runs 14097, 25641, 5196.
17:06---Start runs 14098, 25642, 5197.
17:40---Beam current dropped to 110 uA due to trippiness.
18:05---Start runs 14099, 25643, 5198.
18:21---Beam current raised to 114 uA due to stability. In the 40 minutes at 109 uA, there were 7 minutes lost to trips.
18:54---Beam current dropped to 110 uA due to trippiness. In the 33 minutes at 114 uA, there were 10 minutes lost to trips.
19:06---Start runs 14100, 25644, 5199.
20:04---Start runs 14101, 25645, 5200.
20:16---Beam dropped. An accelerator IOC (iocnl3) is being rebooted.
21:01---Runs 14101, 25645, 5200 end. Beam is still down. Start runs 14102, 25646, 5201.
21:34---Beam still down due to IOCNL3.
22:01---Runs 14102, 25646, 5201 end. Beam is still down. Start runs 14103, 25647, 5202.
22:21---Move to the empty target.
22:29---The empty target is in position. Beam is still down.
22:59---Runs 14103, 25647, 5202 end. Beam is still down. Start runs 14104, 25648, 5203.
23:28---Pagers off-site don't work, or are working very inconsistently.
OPS has gotten through to an expert, who is now on the way in.
23:49---Ole notices that run 14104 is junk. No events. Does not matter much since there is no beam.
Reboot PVDIS CODA.
Start parity run 14105.
Shift ends with no beam.
We have been told that an expert has been contacted and is on the way in.
No time estimate.