Difference between revisions of "April 13, 2022 Calorimeter"
From GlueXWiki
(→Tentative Agenda) |
|||
Line 80: | Line 80: | ||
= Minutes = | = Minutes = | ||
''Attendees:'' | ''Attendees:'' | ||
+ | |||
+ | # Run Operations | ||
+ | ##FCAL | ||
+ | ### Igal presented a proposal to lower the FCAL range from 2V to 1V which would allow lowering the voltage by ~100V. He did a simulation of the threshold effect. | ||
+ | ### Since GlueX cares about the lowest energy photons we asked him to show a zoom of the simulation plots to the low energy area. | ||
+ | ### We also discussed issues with the FCAL energy correction and Igal make recommendations for GlueX energy correction. | ||
+ | ### We discussed changing the V range just for PrimeX. Malte will look at a board to see if it can be done without uncabling. | ||
+ | ##FCAL hardware | ||
+ | ### We will change about 40-50 PMTs to bring up the lowest gain ones. | ||
+ | ### We discussed onsider going to low threshold for CPP. Mark will talk to Matt about low threshold in readout. | ||
+ | Described FCAL procedure | ||
+ | ## BCAL | ||
+ | ### The BCAL hot channels were discussed. Mark will talk to the AIEC folks about what we can benefit from their work. | ||
+ | ## CCAL | ||
+ | ### The CCAL will not be used for CCP. For PrimeX the Muon detector will be removed and the CCAL installed. | ||
+ | # Calibration | ||
+ | ## Stjepan and Karthik working on summary document for PrimEx and SRC. | ||
+ | ## Stjepan has implemented gain ratio from SRC. Many iterations necessary. More will be needed after next monitoring launch. | ||
+ | # Monitoring | ||
+ | ## Susan presented a TODO list for the FCAL. The CCAL has no problems. |
Revision as of 12:47, 13 April 2022
Meeting Day/Time: every other WEDNESDAY at 11:00 a.m. JLab time
Contents
Connection instructions
Use ZoomGov: https://jlab-org.zoomgov.com/j/1608552106?pwd=UE1nZFIzUUZHVjJEVGJXTGdUYTV3UT09.
Our meeting ID number is 160 855 2106. Click "Expand" for more details.
- Meeting ID: 160 855 2106 Passcode: 944454
- One tap mobile
+16692545252,,1608552106# US (San Jose) +16468287666,,1608552106# US (New York)
- Dial by your location
+1 669 254 5252 US (San Jose) +1 646 828 7666 US (New York) +1 551 285 1373 US +1 669 216 1590 US (San Jose) 833 568 8864 US Toll-free
- Meeting ID: 160 855 2106
- Find your local number: https://jlab-org.zoomgov.com/u/acAwPdiE89
- Join by SIP 1608552106@sip.zoomgov.com
- Join by H.323
161.199.138.10 (US West) 161.199.136.10 (US East) Meeting ID: 160 855 2106 Passcode: 944454
References
- FCAL HDFCAL log book
- BCAL HDBCAL log book
- CCAL HDCCAL log book
- Calibrations: 2020 Data Production; RunPeriod-2019-11 Validation; Offline Monitoring Data Validation
- Photon Reconstruction Task Force
- BCAL calibration links, 2020, PrimEx, SRC
Goals for Calorimetry Group
- Determine preliminary photon reconstruction efficiencies as a function of E, phi and theta in data and simulation with a point-to-point precision of at least 5%.
- Measure systematics of pi0/eta mass calibration as a function of detector position to a precision of at least 5 MeV.
- Demonstrate agreement of photon reconstruction efficiency and resolution between data and simulation as a function of E, phi and theta to within 5%.
Action Items
- Short term CALWG Items
- Long term items
- Calorimeter work packages
- AI - BCAL Monitoring:
Tentative Agenda
- Announcements
- Past Meeting Minutes
- Shutdown tasks
- Review Action Items
- Run Operations
- FCAL Photon energy range --ig
- BCAL
- CCAL
- Calibration
- Monitoring
- BCAL (offline)
- FCAL (offline)
- monitoring ver06: Batch 1 done, nothing to report
- to do list FCAL LED efficiency and timing status:
- 'TotalInte' (Sum over ADC Integrals showing peaks for LED configurations)
- Runs with only one, large value, related to entering the dark room to replace bases
- Noisy run in SRC data? Peaks in-between?
- Rerun LED timing status after calibration is final (started for PrimeX)
- LED hi rate issue
- 'TotalInte' (Sum over ADC Integrals showing peaks for LED configurations)
- CCAL (offline)
- monitoring ver06: Batch 1 done, nothing to report
- Reconstruction
- Simulations
- Any other business
Minutes
Attendees:
- Run Operations
- FCAL
- Igal presented a proposal to lower the FCAL range from 2V to 1V which would allow lowering the voltage by ~100V. He did a simulation of the threshold effect.
- Since GlueX cares about the lowest energy photons we asked him to show a zoom of the simulation plots to the low energy area.
- We also discussed issues with the FCAL energy correction and Igal make recommendations for GlueX energy correction.
- We discussed changing the V range just for PrimeX. Malte will look at a board to see if it can be done without uncabling.
- FCAL hardware
- We will change about 40-50 PMTs to bring up the lowest gain ones.
- We discussed onsider going to low threshold for CPP. Mark will talk to Matt about low threshold in readout.
- FCAL
Described FCAL procedure
- BCAL
- The BCAL hot channels were discussed. Mark will talk to the AIEC folks about what we can benefit from their work.
- CCAL
- The CCAL will not be used for CCP. For PrimeX the Muon detector will be removed and the CCAL installed.
- BCAL
- Calibration
- Stjepan and Karthik working on summary document for PrimEx and SRC.
- Stjepan has implemented gain ratio from SRC. Many iterations necessary. More will be needed after next monitoring launch.
- Monitoring
- Susan presented a TODO list for the FCAL. The CCAL has no problems.