Jan 25, 2018 Calorimeter

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Video Conferencing Information

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: (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

Action Items

  1. Check in the code, including scripts, that is used for recent calibrations into git (BCAL: Mark)
  2. Add monitoring plots for charged particle clusterizer [Will to suggest plots and collaborate with Mark]
  3. Checks of MC calibrations for BCAL. Timing (Sean and Mark), non-linearities (Will)

Complete after new launch

  1. Report back on study of eta with in FCAL [Mark]
  2. From Mike's work: -cos(phi) type dependence in the data and a phi dependence at the downstream end of the bcal


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

Tentative Agenda

  1. Announcements
  2. Action Items
  3. FCAL Update
    1. Run preparations
    2. Other updates
  4. BCAL update
    1. Run preparations
    2. Other updates
  5. Calibrations
  6. Reconstruction and Simulation
  7. NIM articles
  8. Any other business


Attendees: Matt (IU), Christina, George (Athens), Will (CMU), Sean (FSU), Ahmed, Andrei, Zisis (Regina)"

  1. Announcements: beam is back after a couple of days with issues.
  2. Action Items: Sean - nothing to report, Will completed the non-linearities so this will move off the list.
  3. FCAL Update: routine maintenance continues.
  4. BCAL update: minor issues are being addressed by Mark and Sean.
  5. Calibrations:
    • Sean mentioned that the pi0 skims are available. Will corrected his code to do the track matching/veto tracks and sent it to Tegan yesterday. Tegan will run the inclusive code and report back to Sean.
    • Sean reported that the higher level calibrations from last time look good for both BCAL and FCAL, with only minor run-to-run shifts needing to be dealt with.
    • Andrei will show Zisis how to do the cosmics gain factor calibration. A summer student will work on this and will need to develop code for BCAL self-triggering on cosmics. Will added that Layer 4 is only calibrated in this way, so it would be good to check this periodically.
  6. Reconstruction and Simulation: Andrei reported briefly on his work regarding neutron-gamma separation. That part is not too hard, but it is more challenging to reconstruct the neutron's momentum. He is also running HDGEANT simulations for this work, in addition to the standalone simulations that Irina ran. A more detailed progress report will be given at our next meeting in two weeks.
  7. NIM article: Matt has the FCAL NIM article on his radar for this calendar year.
  8. Any other business: none.