PrimEx 2022

1 Sept

Ready to start. This is how to do the initialization (on one of the gluons):

source $HOSS_VENV/bin/activate.csh

python3 /group/halld/AIEC/utilities/CDC_control_ai/primex/AIEC_CDC.py -c /group/halld/AIEC/utilities/CDC_control_ai/primex/AIEC_CDC.cfg -I 15

(the arguments are minus capital i and then the lookback time in seconds)

10:13 switched the AI on. The next run will be 110505. They are using a SOLID Be TARGET so Thomas made the auto-shut-off for empty target configurable and switched it off.

5 Sept

110583 was the last run before the HV was switched off.

11:25 - Shift log: All CDC and FDC HVs were turned off, and the solenoid current is being ramped down to 0A. 13:12 - Shift log: Beni called to inform us that he turned off the A.I. for the CDC since we turned the voltages off.

7 Sept

CDC & AI switched back on as the target filled and solenoid ramped [1]

110621 was the first run with the solenoid on and target full.

8 Sept

15:07 ish The plan for the rest of the run period is to use the liquid He target. Thomas enabled the auto-off if the target is not in state 3 (full & ready). This will set the HV to 2125V and switch off the AI's recommending (voltage-setting) when the target is in any other state. We will need to ask the shifters to switch the AI back on after empty target runs and not before the target is full again.