Difference between revisions of "Run Planning Meeting Notes, September 8 - September 14, 2022"
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=== Past 24 hours=== | === Past 24 hours=== | ||
*Production data at 200nA on the liquid He target. | *Production data at 200nA on the liquid He target. | ||
| − | |||
*Trigger studies and rate scan performed by Sasha | *Trigger studies and rate scan performed by Sasha | ||
**Added low-threshold trigger for FCAL (0.5GeV Trigger threshold) | **Added low-threshold trigger for FCAL (0.5GeV Trigger threshold) | ||
**2 noisy FCAL channels were masked | **2 noisy FCAL channels were masked | ||
| + | *[https://logbooks.jlab.org/entry/4039223 FCAL HV Scan with solenoid field on] | ||
*[https://logbooks.jlab.org/entry/4039262 Beam stability on the active collimator (Beni)] | *[https://logbooks.jlab.org/entry/4039262 Beam stability on the active collimator (Beni)] | ||
*Shift summaries: | *Shift summaries: | ||
Revision as of 08:34, 9 September 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, September 9
Past 24 hours
- Production data at 200nA on the liquid He target.
- Trigger studies and rate scan performed by Sasha
- Added low-threshold trigger for FCAL (0.5GeV Trigger threshold)
- 2 noisy FCAL channels were masked
- FCAL HV Scan with solenoid field on
- Beam stability on the active collimator (Beni)
- Shift summaries:
- 0400-1000 09/09
- 2200-0400 08/09-09/09
- 1600-2200 08/09
- 1000-1600 08/09
- 0400-1000 08/09
Issues
- Beam was unavailable for about 1 hour during the day shift due to Hall C's BCM calibration. We correlated the FCAL HV scan with this downtime.
- Minor issue with one shift worker not showing up. Thanks to Karthik for taking that role on short notice.
- EA LCW Oscillations giving rise to vertical orbit excursions in Hall D Beam
- Trigger Timing change noted by Beni
Plan
- Continue taking production data at 200nA.
- Production runs at small intensity (50nA and 100nA) over the weekend?
- PrimEx Run Plan
Thursday, September 8
Past 24 hours
- Maintenance day
- Work done in hall:
- Removed Be target, Installed He target and ramped magnet:
- Fixed connection for missing channels in ST:
- Replaced FCAL bases & one PMT (Malte): [1], [2]
- LHe Target full and ready after ~11 hours, [3] (Chris Carlin)
- Extrapolations from harp scans
- FCAL HV Correction for outliers (Igal)
- 308M Triggers collected while target was filling and solenoid ramping.
- 404M Triggers collected with target full and solenoid ramped.
- More details can be found here
Issues
- FDC-RF selftiming peak is missing
- Hall C will do BCM calibrations this afternoon, coordinate access to fix FDC TDCs with this?
Plan
- Rate+Trigger Studies (Sasha)
- Begin(continue) production on LHe Target @200nA
- Wednesday, 9/14: MCC plans to open the tunnel with the goal to bring up as much RF as possible. They plan to spend ~1.5 shifts for this.
