Difference between revisions of "SoLID Ecal Weekly 20230720"
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* Xinzhan will work on GEM tracking efficiency correction, estimate time needed = 2 weeks. | * Xinzhan will work on GEM tracking efficiency correction, estimate time needed = 2 weeks. | ||
* Spencer is working on best test simulation PID, studying Shower/Preshower 2D cuts with TS3 applied. We discussed using momentum-binned simulation spectrum to find the "best slope" of the 2D cut. | * Spencer is working on best test simulation PID, studying Shower/Preshower 2D cuts with TS3 applied. We discussed using momentum-binned simulation spectrum to find the "best slope" of the 2D cut. | ||
| − | * Ye [ slides]showed that Shower MIPs seem to change to higher values at higher current/rate runs, though Preshower MIPs remained stable for the same condition. It appears that Shower-L PMT failed at the highest rate. Alexandre commented that PMT gain may drop initially with higher rate, and then eventually fail (no light output). We should: | + | * Ye [https://solid.jlab.org/wiki/images/6/63/07202023_ECal_updates.pdf slides]showed that Shower MIPs seem to change to higher values at higher current/rate runs, though Preshower MIPs remained stable for the same condition. It appears that Shower-L PMT failed at the highest rate. Alexandre commented that PMT gain may drop initially with higher rate, and then eventually fail (no light output). We should: |
**check if Jixie did any pedestal study -- update: all studies were done with beam off, HV on vs. off which would not be helpful for the rate-dependent baseline determination | **check if Jixie did any pedestal study -- update: all studies were done with beam off, HV on vs. off which would not be helpful for the rate-dependent baseline determination | ||
**test all PMTs to be used for SoLID to see at what rates they would fail. | **test all PMTs to be used for SoLID to see at what rates they would fail. | ||
Latest revision as of 09:37, 31 July 2023
Various Updates
- Xinzhan will work on GEM tracking efficiency correction, estimate time needed = 2 weeks.
- Spencer is working on best test simulation PID, studying Shower/Preshower 2D cuts with TS3 applied. We discussed using momentum-binned simulation spectrum to find the "best slope" of the 2D cut.
- Ye slidesshowed that Shower MIPs seem to change to higher values at higher current/rate runs, though Preshower MIPs remained stable for the same condition. It appears that Shower-L PMT failed at the highest rate. Alexandre commented that PMT gain may drop initially with higher rate, and then eventually fail (no light output). We should:
- check if Jixie did any pedestal study -- update: all studies were done with beam off, HV on vs. off which would not be helpful for the rate-dependent baseline determination
- test all PMTs to be used for SoLID to see at what rates they would fail.
Update on ML PID
- Darren's slides:
