Difference between revisions of "Run Planning Meeting Notes, November 30 - December 7, 2022"
From GlueXWiki
(→Friday Dec. 2nd) |
(→Issues) |
||
| Line 21: | Line 21: | ||
=== Issues === | === Issues === | ||
*The FDC fadc installed Wednesday by Naomi and Lubomir needed baseline calibration. Done during swing shift (Sergei/Lubomir). | *The FDC fadc installed Wednesday by Naomi and Lubomir needed baseline calibration. Done during swing shift (Sergei/Lubomir). | ||
| − | *cdc p_diff alarms are becoming rarer: 1 (day shift) + 1 ( | + | *cdc p_diff alarms are becoming rarer: 1 (day shift) + 1 (swing shift) + 0 reported in owl shift + 1 early riser. |
=== Short term run plan === | === Short term run plan === | ||
Revision as of 08:33, 2 December 2022
Meetings are via ZoomGov: connect (Meeting ID: 160 199 0060 / Passcode 8394)
Hall D counting room white board
Back to Run Coordination Meetings:Fall2022
Contents
Friday Dec. 2nd
Last 24h
- Thursday was spent mostly with production on full target. It was an efficient day, with 17.8h of ABU (7am-7am).
- A. Somov did a low beam current test of the Active Colim. high gain in anticipation of a future TAC run. It looks good.
- Hall C was supposed to get back to running in mid-swing shift, which would be followed by us doing Harp scans (last ones done: Oct. 21st), but it did not happen (Hall C vacuum issue).
Reports
Issues
- The FDC fadc installed Wednesday by Naomi and Lubomir needed baseline calibration. Done during swing shift (Sergei/Lubomir).
- cdc p_diff alarms are becoming rarer: 1 (day shift) + 1 (swing shift) + 0 reported in owl shift + 1 early riser.
Short term run plan
- Hall C is expected to be back to running ??any time??.
- Harp scan after Hall C beam is tuned (last harps done on Nov. 21st, but Transmission is fine.)
- FDC fadc:
- 20 min raw mode run (either with beam or cosmic). Beni will analyse it and determine if the fadc needs to be replaced
- If beam is off, we have opportunistic work:
- Beam off for more than 1h: rapid access for A. Somov and Vlad for ??
- Beam off for more than 2h: rapid access for Lubomir or Beni IF FDC fadc needs to be changed
- Beam off for more than 2h and RadCon is available, need to survey fadc to removed them from the Hall (Lubomir/Codi)
Tentative longer term run plan
- TAC run
- Luminosity study
Thursday Dec. 1st
Last 24h
- Wednesday started with production on empty target. It was an efficient day, with 17.1h of ABU (7am-7am).
- 9:10am-11:30 Rapid access to change fadc for FCal and FDC, and fill the target.
- Filled the target, from 10am-1pm. It took 3h to reach nominal density, and the first production runs are done while it was still filling. Target status indicated that it was full&ready by 11:30am.
- Hall A re-started running at 17:48. A consequence is that the Hall D beam energy was quite instable from 6pm (Wed.) to 1am (Thursd.), with total drift of about 14 MeV.
Reports
- PrimEx Analysis progress (Drew)
Issues
- The new FDC fadc is worst than the one replaced (Naomi/Lubomir). The problem is only for raw mode run.
- Many cdc p_diff alarms (e.g. 0.8 alarm/hour during swing and owl shifts) leading to runs often shorter than 2h (this has already been discussed several time. This is just a report).
Run plan
- Hall C is expected to be back to running during swing shift today.
- 20 min test at low beam current/high Active Colim. gain to see if adjustment are needed (A. Somov)?
- Last harp scan was done on Nov. 21st. Should we do a new one? (Transmission is fine.)
- Luminosity study?
