Difference between revisions of "Feb 12, 2015 Calorimetry"

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(Minutes)
Line 47: Line 47:
 
# FCAL  
 
# FCAL  
 
## [https://logbooks.jlab.org/book/hdfcal HDFCAL log book]
 
## [https://logbooks.jlab.org/book/hdfcal HDFCAL log book]
## [[media:Fcal_cal_12_Feb_2015.pdf‎ | Calibration Update]]
+
## Hardware updates (Manuel)
 +
##* GUIs for controls will be completed this week. These incorporates changes discussed with Hovanes for good interface to EPICS. The EPICS GUIs will allow entire strands to be turned on at once instead of one pmt at a time.
 +
##* Testing of control software will be done next week.
 +
##* Dark room environment was tested after all the VESDA work. No new light leaks have been found.
 +
##* Replaced about 20 bases. Shipped back to IU for diagnosis. Do not expect to replace any more bases before next run.
 +
##* New checklists need to be completed starting next week in preparation for the run.
 +
## [[media:Fcal_cal_12_Feb_2015.pdf‎ | Calibration Update]] (Matt)
 +
##* Emphasis on updates since yesterday's calibration meeting.
 +
##* Gain matching by minimizing the pi0 width. Iterations have improved width but also distort the distribution by gathering in background into the peak region.
 +
##* Checking systematics by dividing the sample into one: one for determining the gain constants and the other for testing their validity
 +
##* Looking at alternate methods for equalizing the gains.
 +
##* Response to LED. Set gains based on average of nearest neighbors. Variations on this scheme have been tried and testing vs number of iterations, were a large number of iteration is not optimal.
 +
##* Checking
 
# BCAL [https://logbooks.jlab.org/book/hdbcal HDBCAL log book]
 
# BCAL [https://logbooks.jlab.org/book/hdbcal HDBCAL log book]
 
# Reconstruction and Simulation  
 
# Reconstruction and Simulation  

Revision as of 13:27, 12 February 2015

Video Conferencing Information

Meeting Time: 11 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 F326 is 757-269-6460 (usual room)
  • JLab Phone in CC L207 is 757-269-7084
  • 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

References

Tentative Agenda

  1. Announcements
  2. Collaboration Meeting February 19-21 at Jefferson Lab.
  3. Action Items
  4. FCAL
    1. HDFCAL log book
    2. Calibration Update
  5. BCAL HDBCAL log book
  6. Reconstruction and Simulation
  7. Calibration
  8. Any other business

Minutes

Attendees: Elton, Will, Noemi, Adesh, Manuel, Mark, Eugene (JLab); Zisis (UofR); Matt (IU); Christina, George (Athens)

  1. Announcements
  2. Collaboration Meeting February 19-21 at Jefferson Lab.
  3. Action Items
  4. FCAL
    1. HDFCAL log book
    2. Hardware updates (Manuel)
      • GUIs for controls will be completed this week. These incorporates changes discussed with Hovanes for good interface to EPICS. The EPICS GUIs will allow entire strands to be turned on at once instead of one pmt at a time.
      • Testing of control software will be done next week.
      • Dark room environment was tested after all the VESDA work. No new light leaks have been found.
      • Replaced about 20 bases. Shipped back to IU for diagnosis. Do not expect to replace any more bases before next run.
      • New checklists need to be completed starting next week in preparation for the run.
    3. Calibration Update (Matt)
      • Emphasis on updates since yesterday's calibration meeting.
      • Gain matching by minimizing the pi0 width. Iterations have improved width but also distort the distribution by gathering in background into the peak region.
      • Checking systematics by dividing the sample into one: one for determining the gain constants and the other for testing their validity
      • Looking at alternate methods for equalizing the gains.
      • Response to LED. Set gains based on average of nearest neighbors. Variations on this scheme have been tried and testing vs number of iterations, were a large number of iteration is not optimal.
      • Checking
  5. BCAL HDBCAL log book
  6. Reconstruction and Simulation
  7. Calibration
  8. Any other business