Difference between revisions of "June 1st 2024"
From Hall A Wiki
| Line 6: | Line 6: | ||
*ECAL | *ECAL | ||
| + | ** BigBite being uncabled | ||
| + | ** are distances optimizaed for calibration ? HIgh Q2 for fully popoulated, low Q2 could go closer, need to be checked ? | ||
| + | |||
*HCAL | *HCAL | ||
| + | ** need better calibration procedure and HV setting | ||
| + | ** might want to run at higher gain | ||
| + | ** digital trigger should be better since coefficient can be included | ||
| + | ** noisy PMTS , at limit | ||
| + | ** possible loss of efficiency for GEn, GEn RP | ||
| + | ** 1 to 3 MHz HCAL trigger during experiments | ||
| + | ** keep analog trigger for cross | ||
| + | ** no plan for change of PMTs during down | ||
| + | ** check problematic channels for Gep : noise | ||
| + | ** add amplifiers on channel with low gain ? | ||
| + | ** LED ? Useful for PMT characterization | ||
| + | ** MIP HCAL calibration ? | ||
| + | ** GEp Hydrogen scattering : recasterring and energy loss in analyzer - HCAL at 10 meters | ||
| + | ** recommended HV channel during GEn RP : some HV might have been highers that needed to be - edge can be manually tweaked - | ||
| + | |||
*CDet | *CDet | ||
| + | **focusing on what is needed to get detector ready to put in hall and put together : cables , infrastructure | ||
| + | ** need to think about calibration | ||
| + | ** set up VETROC | ||
| + | ** need help with cable setup : check in hall | ||
| + | ** need ribbon cables from detector to patch | ||
| + | ** ribbon cable from repeater to VETROC crate length | ||
| + | ** SHV feed through and patch panel ordered | ||
| + | ** test of power supply for NINON : voltage drop from patch panel - with length planned in the hall | ||
| + | ** VETROC adapter : connector give | ||
| + | ** spreadsheet for cables availbale, will put link in wiki | ||
| + | ** Peter, Rakph, SULI student, Andrew Master student | ||
| + | ** VETROC software : send email to Ed Brash about software | ||
| + | ** gain matching , discriminator threshold need to be calibratied quickly at beginning | ||
| + | ** threshold set on NINO with potentiometer - | ||
| + | ** TDC and TOT : for amplitude calibration | ||
| + | ** PMT gain curves ? Have all of them but the last one | ||
| + | ** FADC ? - not planned to have signals - | ||
| + | ** plan for a few analog cables for FADC - maybe 64 to 100 | ||
| + | |||
| + | |||
*Trigger | *Trigger | ||
| + | **lookup tables for trigger, Kipp has already look up tables for FPGA implementation | ||
| + | |||
*GEMs | *GEMs | ||
| + | **lookup tables for GEMs | ||
| + | ** GEM configuration not finalized yet | ||
| + | ** pixel readout | ||
| + | ** check with Nilanga and simulation people Eric, Kipp | ||
| + | ** DAQ modes : full readout, with supression, with ROI | ||
| + | ** selective readout : MPD level or VTP level - | ||
Latest revision as of 11:59, 3 June 2024
Subsystem updates
https://redmine.jlab.org/projects/sbs-daq-gep?jump=welcome
https://redmine.jlab.org/projects/sbs-daq-gep/issues
- ECAL
- BigBite being uncabled
- are distances optimizaed for calibration ? HIgh Q2 for fully popoulated, low Q2 could go closer, need to be checked ?
- HCAL
- need better calibration procedure and HV setting
- might want to run at higher gain
- digital trigger should be better since coefficient can be included
- noisy PMTS , at limit
- possible loss of efficiency for GEn, GEn RP
- 1 to 3 MHz HCAL trigger during experiments
- keep analog trigger for cross
- no plan for change of PMTs during down
- check problematic channels for Gep : noise
- add amplifiers on channel with low gain ?
- LED ? Useful for PMT characterization
- MIP HCAL calibration ?
- GEp Hydrogen scattering : recasterring and energy loss in analyzer - HCAL at 10 meters
- recommended HV channel during GEn RP : some HV might have been highers that needed to be - edge can be manually tweaked -
- CDet
- focusing on what is needed to get detector ready to put in hall and put together : cables , infrastructure
- need to think about calibration
- set up VETROC
- need help with cable setup : check in hall
- need ribbon cables from detector to patch
- ribbon cable from repeater to VETROC crate length
- SHV feed through and patch panel ordered
- test of power supply for NINON : voltage drop from patch panel - with length planned in the hall
- VETROC adapter : connector give
- spreadsheet for cables availbale, will put link in wiki
- Peter, Rakph, SULI student, Andrew Master student
- VETROC software : send email to Ed Brash about software
- gain matching , discriminator threshold need to be calibratied quickly at beginning
- threshold set on NINO with potentiometer -
- TDC and TOT : for amplitude calibration
- PMT gain curves ? Have all of them but the last one
- FADC ? - not planned to have signals -
- plan for a few analog cables for FADC - maybe 64 to 100
- Trigger
- lookup tables for trigger, Kipp has already look up tables for FPGA implementation
- GEMs
- lookup tables for GEMs
- GEM configuration not finalized yet
- pixel readout
- check with Nilanga and simulation people Eric, Kipp
- DAQ modes : full readout, with supression, with ROI
- selective readout : MPD level or VTP level -
