Difference between revisions of "Nov 11, 2020 Calorimeter"
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− | ''Attending:'' | + | ''Attending: Varun, Karthik, Igal, Zisis, Colin, Elton, Christina, Mark, Sasha, Sean, Matt, Rebecca, Jon, Chandra, Malte, Tolga, Susan'' |
+ | |||
+ | # Announcements | ||
+ | #* This is the first joint CALWG/PrimEx calorimeter meeting. We will have these once a month. | ||
+ | # Run Preparations | ||
+ | ## FCAL: Mark reported that 80 bases have been removed. Using a 60Co source from RadCon (strongest one that can be loaned to the Hall) trying to fry the microcontroller; so far no failure. Ben Raydo has a watchdog timer on the microcontroller but needs tp crash the base to test it. Need to check the CAN interface communication on base: this is a good diagnostic to look at. Colin mentioned that it could be a firmware issue. Jon added that each base can be tested one at a time, which takes 80-100 hours. It is likely not an RF issue in the hall; we have no evidence that this a good candidate. Matt reminded us that we are using flat ribbon cables; when we have beam we can test beam on/off and carry out a Fourier transform. Mark said that radiation damage is a long short, and anyhow that cannot be tested using a 60 Co source. Sasha mentioned that power cycling recovers from the issue; perhaps it bit errors are responsible. More discussion will occur offline and at Friday's PrimEx meeting. | ||
+ | ## BCAL | ||
+ | # PrimEx/CCAL/FCAL-II | ||
+ | # Calibration | ||
+ | # Monitoring | ||
+ | ## BCAL LED | ||
+ | ## BCAL (offline) | ||
+ | ## FCAL (offline) [https://halldweb.jlab.org/wiki/images/7/74/2020-11-11-Fcalbadchannels.pdf method for bad channels map GlueX data] | ||
+ | # Efficiency | ||
+ | # Reconstruction | ||
+ | ## Single block showers for muons (Elton) | ||
+ | # Simulations | ||
+ | # Action Items: | ||
+ | #* No specific updates to the Short-, Long-Term or Work packages. Elton requested that we add a detailed study of the fiducial volume around the beam hole. Rebecca is looking at the efficiency at small angles. Check 2017 data first; tine MC to get better agreement with data for 2018. | ||
+ | # Any other business |
Revision as of 22:22, 16 November 2020
Meeting Day: WEDNESDAY
Meeting Time: 11:00 a.m. JLab time
- To join via a Web Browser, go to the page [1] https://bluejeans.com/907185247.
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- More information on connecting to bluejeans is available.
Contents
Participant Direct Lines
- JLab Phone in CC L207 is 757-269-7084 (usual room)
- JLab Phone: in CC F326 is 757-269-6460
- Phone in the Regina Video-conference Suite is 306-585-4204
- Athens Phone: in Christina's office is 011-30-210-727-6947
References
- FCAL HDFCAL log book
- BCAL HDBCAL log book
- Calibrations: 2020 Data Production; RunPeriod-2019-11 Validation; Offline Monitoring Data Validation
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
Tentative Agenda
- Announcements
- Run Preparations
- FCAL
- BCAL
- PrimEx/CCAL/FCAL-II
- Calibration
- Monitoring
- BCAL LED
- BCAL (offline)
- FCAL (offline) method for bad channels map GlueX data
- Efficiency
- Reconstruction
- Single block showers for muons (Elton)
- Simulations
- Action Items
- Any other business
Minutes
Attending: Varun, Karthik, Igal, Zisis, Colin, Elton, Christina, Mark, Sasha, Sean, Matt, Rebecca, Jon, Chandra, Malte, Tolga, Susan
- Announcements
- This is the first joint CALWG/PrimEx calorimeter meeting. We will have these once a month.
- Run Preparations
- FCAL: Mark reported that 80 bases have been removed. Using a 60Co source from RadCon (strongest one that can be loaned to the Hall) trying to fry the microcontroller; so far no failure. Ben Raydo has a watchdog timer on the microcontroller but needs tp crash the base to test it. Need to check the CAN interface communication on base: this is a good diagnostic to look at. Colin mentioned that it could be a firmware issue. Jon added that each base can be tested one at a time, which takes 80-100 hours. It is likely not an RF issue in the hall; we have no evidence that this a good candidate. Matt reminded us that we are using flat ribbon cables; when we have beam we can test beam on/off and carry out a Fourier transform. Mark said that radiation damage is a long short, and anyhow that cannot be tested using a 60 Co source. Sasha mentioned that power cycling recovers from the issue; perhaps it bit errors are responsible. More discussion will occur offline and at Friday's PrimEx meeting.
- BCAL
- PrimEx/CCAL/FCAL-II
- Calibration
- Monitoring
- BCAL LED
- BCAL (offline)
- FCAL (offline) method for bad channels map GlueX data
- Efficiency
- Reconstruction
- Single block showers for muons (Elton)
- Simulations
- Action Items:
- No specific updates to the Short-, Long-Term or Work packages. Elton requested that we add a detailed study of the fiducial volume around the beam hole. Rebecca is looking at the efficiency at small angles. Check 2017 data first; tine MC to get better agreement with data for 2018.
- Any other business