Difference between revisions of "May 11, 2022 Calorimeter"

From GlueXWiki
Jump to: navigation, search
(Tentative Agenda)
(Minutes)
 
(2 intermediate revisions by 2 users not shown)
Line 59: Line 59:
 
# Run Operations
 
# Run Operations
 
## FCAL
 
## FCAL
 +
### There have been 7 recent failures in calorimeter FADCs (BCAL 3, FCAL 4) [https://logbooks.jlab.org/entry/3991809][https://logbooks.jlab.org/entry/3993452][https://logbooks.jlab.org/entry/3993814]  Could dirt be the issue? [https://logbooks.jlab.org/entry/3993462]
 +
### Low signal bases had torque checked, no apparent improvement. [https://logbooks.jlab.org/entry/3991735 elog 3991735]
 +
### 25 PMTs replaced in FCAL [https://logbooks.jlab.org/entry/3993096 elog 3993096]
 
## BCAL
 
## BCAL
 
## CCAL
 
## CCAL
Line 72: Line 75:
  
 
= Minutes =
 
= Minutes =
''Attendees:''
+
''Attendees: Mark, Tolga, Elton, Karthik, Stjepan, Sean, Varun, Malte, Jon, Susan, Zisis''
 +
 
 +
# Announcements
 +
# Past Meeting Minutes
 +
# Shutdown tasks
 +
## Review Action Items
 +
# Run Operations
 +
## FCAL
 +
### There have been 7 recent failures in calorimeter FADCs (BCAL 3, FCAL 4). Could dirt/metallic filings (from nearby grinding) be the issue? This will be investigated further. (see above links).
 +
### Low signal bases had torque checked, no apparent improvement (see above link).
 +
### 25 PMTs replaced in FCAL(see above link). &alpha; power exponent (V<sup>&alpha;</sup>) was extracted to assist in setting the HV.  Priority for PMT replacement goes based on the radius (smaller values, inner blocks).
 +
## BCAL: FADC issues here too of unknown origin.  Fan filters will be checked, but if cleaning is needed then RadCon needs to be called.
 +
## CCAL: no report.
 +
# Calibration:
 +
## Sean asked if everything is ready for PrimEx as connected to the newest monitoring launch.  Mark will check and let Regina know if more iterations are needed for the BCAL.
 +
## Elton brought up the FCAL calibration for CPP. Mark mentioned that the log-weighed method for the FCAL may not work as well for low energies.Elton will contact Igal to start the conversation.
 +
# Monitoring
 +
## BCAL (offline)
 +
###Monitoring: Verbal Update (Tolga) (most plots are same as last update)
 +
## FCAL (offline)
 +
## CCAL (offline)
 +
# Reconstruction:
 +
## Elton brought up the topic of hadronic efficiencies.  An offline meeting will be set up; Tolga will likely undertake this task.
 +
## Churamani sent in a brief report via email: 'Basically on the new invariant mass spectrums from S1(2017) and U1 (spring fall 2018)flags, I am performing fits for yield extractions at this time.'
 +
# Simulations: none.
 +
# Any other business: none.

Latest revision as of 13:49, 11 May 2022

Meeting Day/Time: every other WEDNESDAY at 11:00 a.m. JLab time

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
       161.199.138.10 (US West)
       161.199.136.10 (US East)
       Meeting ID: 160 855 2106
       Passcode: 944454

References

  1. FCAL HDFCAL log book
  2. BCAL HDBCAL log book
  3. CCAL HDCCAL log book
  4. Calibrations: 2020 Data Production; RunPeriod-2019-11 Validation; Offline Monitoring Data Validation
  5. Photon Reconstruction Task Force
  6. BCAL calibration links, 2020, PrimEx, SRC

Goals for Calorimetry Group

  1. 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%.
  2. Measure systematics of pi0/eta mass calibration as a function of detector position to a precision of at least 5 MeV.
  3. 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

  1. Short term CALWG Items
  2. Long term items
  3. Calorimeter work packages
  4. AI - BCAL Monitoring:
    1. Hydra Real-Time Dashboard
    2. Hydra 24-hr Monitoring Logs

Tentative Agenda

  1. Announcements
  2. Past Meeting Minutes
  3. Shutdown tasks
    1. Review Action Items
  4. Run Operations
    1. FCAL
      1. There have been 7 recent failures in calorimeter FADCs (BCAL 3, FCAL 4) [1][2][3] Could dirt be the issue? [4]
      2. Low signal bases had torque checked, no apparent improvement. elog 3991735
      3. 25 PMTs replaced in FCAL elog 3993096
    2. BCAL
    3. CCAL
  5. Calibration
  6. Monitoring
    1. BCAL (offline)
      1. Monitoring: Verbal Update (Tolga) (most plots are same as last update)
    2. FCAL (offline)
    3. CCAL (offline)
  7. Reconstruction
  8. Simulations
  9. Any other business

Minutes

Attendees: Mark, Tolga, Elton, Karthik, Stjepan, Sean, Varun, Malte, Jon, Susan, Zisis

  1. Announcements
  2. Past Meeting Minutes
  3. Shutdown tasks
    1. Review Action Items
  4. Run Operations
    1. FCAL
      1. There have been 7 recent failures in calorimeter FADCs (BCAL 3, FCAL 4). Could dirt/metallic filings (from nearby grinding) be the issue? This will be investigated further. (see above links).
      2. Low signal bases had torque checked, no apparent improvement (see above link).
      3. 25 PMTs replaced in FCAL(see above link). α power exponent (Vα) was extracted to assist in setting the HV. Priority for PMT replacement goes based on the radius (smaller values, inner blocks).
    2. BCAL: FADC issues here too of unknown origin. Fan filters will be checked, but if cleaning is needed then RadCon needs to be called.
    3. CCAL: no report.
  5. Calibration:
    1. Sean asked if everything is ready for PrimEx as connected to the newest monitoring launch. Mark will check and let Regina know if more iterations are needed for the BCAL.
    2. Elton brought up the FCAL calibration for CPP. Mark mentioned that the log-weighed method for the FCAL may not work as well for low energies.Elton will contact Igal to start the conversation.
  6. Monitoring
    1. BCAL (offline)
      1. Monitoring: Verbal Update (Tolga) (most plots are same as last update)
    2. FCAL (offline)
    3. CCAL (offline)
  7. Reconstruction:
    1. Elton brought up the topic of hadronic efficiencies. An offline meeting will be set up; Tolga will likely undertake this task.
    2. Churamani sent in a brief report via email: 'Basically on the new invariant mass spectrums from S1(2017) and U1 (spring fall 2018)flags, I am performing fits for yield extractions at this time.'
  8. Simulations: none.
  9. Any other business: none.