Latest revision as of 09:14, 25 April 2025

Meeting time and location:

Agenda

ECAL maintenance and performance during the run
- HV module disconnected from the EPICS control
- Bad flash ADC for reference PMTs
- Low-level histograms [1]
- Adjusting high voltages
  - iteration 5 (based on the run period 10, iteration 0) [2]
- Recent ECAL occupancy, production at 300 nA with 4x10^-4 X0 Al radiator [3]. Suspicious modules after the accelerator maintenance day
- Questions to address:
  - Rates in the detector
  - Gain stability
Calibrations
- Initial HV settings using Compton scattering events [4]
- Pi0 calibration page [5]
  - Pi0s are clearly seen for most ECAL modules (except in the innermost ring) after timing calibration.
Monitoring
Restoring PS test setup [6]
- The prototype has been assembled and tested. Ready for installing in Hall D
  - Move it to the Hall on Wednesday next week (?)

@@ Line 11: / Line 11: @@
 *** iteration 5 (based on the run period 10, iteration 0) [https://logbooks.jlab.org/entry/4364644]
 ** Recent ECAL occupancy, production at 300 nA with 4x10^-4 X0 Al radiator [https://logbooks.jlab.org/entry/4364689]. Suspicious modules after the accelerator maintenance day
+** '''Questions to address:'''
+*** Rates in the detector
+*** Gain stability
 * Calibrations
 ** Initial HV settings using Compton scattering events  [https://logbooks.jlab.org/entry/4357131]