SL: Abdurahim Rakhman
TO: Min Huang
Replay: Pengjia Zhu
16:00 Shift starts with trigger efficiency test run 8489 with 3 uA beam on 15 cm LD2 target, DAQ configuration LeftHrs.
16:50 Asked for an escorted access to fix the DVCS DAQ problem. Stopped data taking.
16:55 Alex went to the Hall.
17:40 Alex came out from the Hall. He swapped board 0x7 with the spare one. DAQ problem seems to be fixed. We asked for a beam permit with 3 uA beam.
17:50 Beam is back. Resumed production data taking with DAQ configuration TrigDVCSBuff.
21:00 Tried to take Compton runs. But the background rates were very high (10kHz/uA). Decided to give up on Compton.
24:00 Shift ended with production run 8502 being taken. It was a very smooth shift.
Kinematics 2: Low energy
PHRSL = 1.864 GeV/c
&thetaHRSL = 26.55o
&thetaCAL = 14.78o
CAL dist. = 1.1 m
Run # | Type | Target | Current (uA) | Event # (k) | Comment |
---|---|---|---|---|---|
8489 | Test | 15 cm LD2 | 3 | 3140 | Trigger efficiency Test, Config: LeftHrs, T3 & T4 only |
8490 | Test | 15 cm LD2 | 3 | 259 | Trigger efficiency Test, Config: LeftHrs, T3 & T4 only |
8491 | Junk | 15 cm LD2 | 0 | 0 | Config: LeftHrs, T3 & T4 only |
8492 | Junk | 15 cm LD2 | 0 | 0 | Config: LeftHrs, T3 & T4 only |
8493 | Junk | 15 cm LD2 | 0 | 0 | Config: LeftHrs, T3 & T4 only |
8494 | Junk | 15 cm LD2 | 0 | 0 | Config: LeftHrs, T3 & T4 only |
8495 | Pedestal | 15 cm LD2 | 0 | 20 | Pedestal, Config: TrigDVCSBuff, T5 only |
8496 | Production | 15 cm LD2 | 3 | 959 | Kin2, Config: TrigDVCSBuff, T5 only |
8497 | Production | 15 cm LD2 | 3 | 986 | Kin2, Config: TrigDVCSBuff, T5 only |
8498 | Production | 15 cm LD2 | 3 | 875 | Kin2, Config: TrigDVCSBuff, T5 only |
8499 | Production | 15 cm LD2 | 3 | 941 | Kin2, Config: TrigDVCSBuff, T5 only |
8500 | Production | 15 cm LD2 | 3 | 879 | Kin2, Config: TrigDVCSBuff, T5 only |
8501 | Production | 15 cm LD2 | 3 | 931 | Kin2, Config: TrigDVCSBuff, T5 only |