Difference between revisions of "Feb 7, 2019 Calorimeter"

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# Announcements
 
# Announcements
 +
#* Beam is expected for the weekend
 +
#* Collaboration meeting: Matt has volunteered to summarize FCAL and BCAL into a single talk. 30 min have been allocated. He has requested the slides for the presentation to be sent to him by next Thu (Feb 14).
 
# Action Items
 
# Action Items
−
# Fix FCAL online monitoring plugin to properly plot low level digi quantities. Tolga: Script in progress, busy few weeks so far. Unlikely to have edited in test plot to show in time.## Review of Goals for the Calorimetry Group (see section above)
+
## Fix FCAL online monitoring plugin to properly plot low level digi quantities. Tolga: Script in progress, busy few weeks so far. Unlikely to have edited in test plot to show in time.## Review of Goals for the Calorimetry Group (see section above)
−
## Complete list of [https://halldweb.jlab.org/wiki-private/index.php/2018_Work_Packages#Calorimetry Calorimeter Work Packages]
+
##* Tolga: leaned process for fast submission for his analysis and plans to use the same scheme to develop the plugin.
 +
##* Mark Dalton: Noted that internally 2D histograms are stored as 1D and root has tools that allows access to the 1D indexing scheme. Tolga can call Mark for more details.
 +
## BCAL: Checking rate of events with missing FP triggers in fall 2018 run. Ahmed has produced plots but has not evaluated the data. 
 
# Run Updates
 
# Run Updates
 
## FCAL
 
## FCAL

Revision as of 16:24, 7 February 2019

Meeting Time: 11:00 a.m.

  1. To join via a Web Browser, go to the page [1] https://bluejeans.com/907185247.
  2. To join via Polycom room system go to the IP Address: 199.48.152.152 (bjn.vc) and enter the meeting ID: 907185247.
  3. To join via phone, use one of the following numbers and the Conference ID: 907185247.
    • US or Canada: +1 408 740 7256 or
    • US or Canada: +1 888 240 2560
  4. Upon connection all microphones are automatically muted. To unmute your mike on a Polycom or equivalent unit, enter *4. Unmuting on a computer is trivial as there is a microphone button than can be clicked.
  5. More information on connecting to bluejeans is available.

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

  1. FCAL HDFCAL log book
  2. BCAL HDBCAL log book

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 east 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

Short term items:

  1. Complete Calorimeter work packages
  2. Fix FCAL online monitoring plugin to properly plot low level digi quantities in 2D displays. 2D display of pedestal is hard to get because occupancy plot is filled in a different loop. (Tolga)
  3. BCAL: Check pulsing rate of LED triggers when FP trigger bit is missing (start with early runs in fall 2018). With discerning software, check pulsing rate of later runs where it appeared that the downstream FP LED bit was not firing. (Ahmed)
  4. BCAL: Check that latest gain ratios are uploaded for spring 2018 (Mark). Sean has checked this.

Long term items:

  1. From Mike's work: -cos(phi) type dependence in the data and a phi dependence at the downstream end of the bcal. See Sep 21, 2017 Calorimeter Meeting.
  2. FCAL: It has been noticed that the pi0 mass shifts when the LED pulser runs at high rate. This is still not understood. See Log Entry 3595928 and references.

Tentative Agenda

  1. Announcements
  2. Action Items
    1. Review of Goals for the Calorimetry Group (see section above)
    2. Complete list of Calorimeter Work Packages
  3. Run Updates
    1. FCAL
    2. BCAL
  4. Calibrations
  5. Reconstruction and Simulation
    1. Costhe Efficiency Method (Elton) - postpone to next meeting
    2. Jon's Efficiency Updates: Photon Gun Studies
  6. Monitoring
  7. NIM articles
  8. Any other business

Minutes

Attending: Elton, Mark, Colin, Shankar, Sean (JLab); Curtis, Will (CMU); Christina, George (Athens); Jon, Matt (IU); Zisis, Ahmed, Karthik (Regina); Tolga, Rupesh (FSU).

  1. Announcements
    • Beam is expected for the weekend
    • Collaboration meeting: Matt has volunteered to summarize FCAL and BCAL into a single talk. 30 min have been allocated. He has requested the slides for the presentation to be sent to him by next Thu (Feb 14).
  2. Action Items
    1. Fix FCAL online monitoring plugin to properly plot low level digi quantities. Tolga: Script in progress, busy few weeks so far. Unlikely to have edited in test plot to show in time.## Review of Goals for the Calorimetry Group (see section above)
      • Tolga: leaned process for fast submission for his analysis and plans to use the same scheme to develop the plugin.
      • Mark Dalton: Noted that internally 2D histograms are stored as 1D and root has tools that allows access to the 1D indexing scheme. Tolga can call Mark for more details.
    2. BCAL: Checking rate of events with missing FP triggers in fall 2018 run. Ahmed has produced plots but has not evaluated the data.
  3. Run Updates
    1. FCAL
    2. BCAL
  4. Calibrations
  5. Reconstruction and Simulation
  6. Monitoring
  7. NIM articles
  8. Any other business
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