Run Coordinator summary: October 12 to 13 (day shift)

keyword=Run Coordinator summary: October 12 to 13 (day shift)

RC report (Oct. 12 Owl shift ~ Oct. 13 Day shift)

Monday, Oct. 12

00:00 Beam off due to IOCHLA needing to be rebooted in Hall A.
Controlled access to reboot IOCHLA and change Compton FADC trigger threhold.
00:50 Beam restored and checking raster.
00:57 Resume 100 uA production with trippy beam.
01:00-05:30 Compton background rate investigative work.
05:30 Compton rate work concludes without success.
06:51 Beam IHWP is inserted and began slug # 22.
09:10 Beam off for spot move and injector work for Compton rates.
17:40 Injector work completed and Compton background rates are more reasonable at 200-300 Hz/uA.
18:37 After beam restoration and beam profile checks, production resumes at 100 uA with Compton production.
The rest of swing shift was very smooth with only 14 beam trips between 19:00 and 24:00.

Tuesday, Oct. 13, (Owl and Day)

Production running with fairly stable beam and okay Compton rates.
00:013-02:23 Compton tests runs with electron detector.
02:23 Resume Compton production running.
Fairly smooth production running into Day shift.
11:30 Compton rates started to increase and brought back down to 200 Hz/uA by adjusting MBH2I03V.
13:09 Begin setting up for Moller measurement.
13:37-14:09 Controlled access to reboot Moller crate.
Day shift ends with Moller in progress.

Please always check online hists and compare them to the reference ones.
If you find something strange or wrong, please HALOG it so that the expert can check it.
Target Operator, please always check target PID system and strip plots to make sure all the systems work.
The cryo flow rate around 25.2g/s and JT value is around 55.5 since this is better for Lumi widths.
The flow rate and JT value setting are sensitive to the outside temperature. Hence the settings may change from morning to evening.
Please be patient when you adjust the JT value since it may take a few minutes to make the cryo flow rate stable.