Difference between revisions of "JEF meeting, April 11, 2025"
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= Agenda = | = Agenda = | ||
| − | + | ||
| − | + | * ECAL maintenance and performance during the run | |
| − | + | ** Issue with the FCAL HV module [https://logbooks.jlab.org/entry/4350038] | |
| − | + | ** Flash ADC scalers during first beam [https://logbooks.jlab.org/entry/4350255] | |
| − | + | ** Two modules fixed during the accelerator maintenance day [https://logbooks.jlab.org/entry/4351422] | |
| − | + | *** ECAL scalers after maintenance day (production at 100 nA on 4.5x10^-4 Al radiator) [https://logbooks.jlab.org/entry/4352367] | |
| − | + | ** Commissioning of the ECAL trigger [https://logbooks.jlab.org/entry/4350528] [https://logbooks.jlab.org/entry/4350730] | |
| − | * | + | ** Issues with the readout crate during two first two production nights [https://logbooks.jlab.org/entry/4352046] |
| − | ** | + | * Calibrations |
| − | ** | + | ** First look at Compton scattering events in the ECAL [https://logbooks.jlab.org/entry/4352034] |
| + | ** ECAL/FCAL energy and timing [https://logbooks.jlab.org/entry/4352404] | ||
| + | ** ECAL coverage with 2-arm Compton [https://userweb.jlab.org/~andrsmit/files/ECAL/04_11_2025/ecal_compton_coverage.pdf] | ||
| + | * Monitoring | ||
* Restoring PS test setup [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/08_09_2024/ps_setup.jpg] | * Restoring PS test setup [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/08_09_2024/ps_setup.jpg] | ||
| + | ** Assembling PS prototype [https://halldweb.jlab.org/wiki/index.php/PS_test_setup] | ||
| + | |||
| + | =Minutes= | ||
| + | Attendees: Liping, Bill, Sasha, Jane, Drew, Axel, S.T. | ||
| + | * Working on setting optimum energy scaling w.r.t. the FADC range for the ECAL | ||
| + | ** Need to set FADC channel for 9 GeV crystal energy so as to not go out of range due to energy fluctuations | ||
| + | * Have new guesses for ECAL HV settings based on Compton analysis; these have not been set yet. | ||
| + | ** Use to set global scale | ||
| + | ** Maybe ramp up HV a little? | ||
| + | * Had failure of one of HV modules for ECAL | ||
| + | * 5x5 PWO + 5x5 lead glass prototype assembled in COMCAL box, ready for installation in hall | ||
| + | ** Using PMT dividers from Hall A for lead glass modules, need adapter for HV connector or replacement | ||
Latest revision as of 09:39, 17 April 2025
Connection
Meeting time and location:
- 9:30 am EST (JLab time) remote only
- Connection information
Agenda
- ECAL maintenance and performance during the run
- Issue with the FCAL HV module [1]
- Flash ADC scalers during first beam [2]
- Two modules fixed during the accelerator maintenance day [3]
- ECAL scalers after maintenance day (production at 100 nA on 4.5x10^-4 Al radiator) [4]
- Commissioning of the ECAL trigger [5] [6]
- Issues with the readout crate during two first two production nights [7]
- Calibrations
- Monitoring
- Restoring PS test setup [11]
- Assembling PS prototype [12]
Minutes
Attendees: Liping, Bill, Sasha, Jane, Drew, Axel, S.T.
- Working on setting optimum energy scaling w.r.t. the FADC range for the ECAL
- Need to set FADC channel for 9 GeV crystal energy so as to not go out of range due to energy fluctuations
- Have new guesses for ECAL HV settings based on Compton analysis; these have not been set yet.
- Use to set global scale
- Maybe ramp up HV a little?
- Had failure of one of HV modules for ECAL
- 5x5 PWO + 5x5 lead glass prototype assembled in COMCAL box, ready for installation in hall
- Using PMT dividers from Hall A for lead glass modules, need adapter for HV connector or replacement
![[11]](https://halldweb.jlab.org/detectors/fcal2/installation/meetings/08_09_2024/ps_setup.jpg){kind=link}