Difference between revisions of "Jun 19, 2014 Calorimetry"

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(→‎Tentative Agenda)
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=Minutes=
 
=Minutes=
  
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''Attendees:
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''Attendees: Mark, Elton, Jon, Zach, Yi (JLab);
 +
 
 +
# Announcements
 +
#* First meeting in the Hall D counting house. We had BlueJeans up and running but no one else joined. Hopefully there were no connection problems.
 +
#* The online group (David and Sergey) will be doing tests on Thu mornings, so individual groups should plan accordingly.
 +
# Action Items
 +
# FCAL [https://logbooks.jlab.org/book/hdfcal HDFCAL log book]
 +
## Environment (Zach)
 +
##* Environmental conditions have not been constant and effort was invested in learning how to optimize A/C settings.
 +
##* During initial settings, the humidity was varying between 35 and 55% with a 20 min period. Temperatures were up as high as 60 degF.
 +
##* With the A/C off, the humidity is between 55-60%, T~ 70degF
 +
##* Interlocks on pmt voltage are set to trip at 65% humidity and 90 degF.
 +
##* Junction box controlling the environment parameters failed and the system was off for a while. The voltage supply was replaced and is now working again. Chris (Stanislav) has ordered additional spares.
 +
##* After adjustments, the humidity is about 40% and Temperature at 60 deg F and they seem relatively stable.
 +
## Base ADC readback (Zach)
 +
##* The readback of HV, temp and current shows instabilities (see log book). Effort is underway to verify that it is just the readback or changes in the actual values.
 +
##* Mark: Suggest to adjust wait times in the code to see if readback is being affected. There are four different wait times that can be adjusted. Zach is getting advice from Dan
 +
# BCAL [https://logbooks.jlab.org/book/hdbcal HDBCAL log book]
 +
# Reconstruction and Simulation
 +
# Technical Construction Report (TCR) update
 +
# Calibration
 +
# Any other business

Revision as of 13:28, 19 June 2014

Video Conferencing Information

Meeting Time: 11:00 a.m. Eastern

  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

Items for followup from previous meeting(s)

  1. Send light guide geometry to Irina for use in simulations (Elton).

Tentative Agenda

  1. Announcements
  2. Action Items
  3. FCAL HDFCAL log book
  4. BCAL HDBCAL log book
  5. Reconstruction and Simulation
  6. Technical Construction Report (TCR) update
  7. Calibration
  8. Any other business

Minutes

Attendees: Mark, Elton, Jon, Zach, Yi (JLab);

  1. Announcements
    • First meeting in the Hall D counting house. We had BlueJeans up and running but no one else joined. Hopefully there were no connection problems.
    • The online group (David and Sergey) will be doing tests on Thu mornings, so individual groups should plan accordingly.
  2. Action Items
  3. FCAL HDFCAL log book
    1. Environment (Zach)
      • Environmental conditions have not been constant and effort was invested in learning how to optimize A/C settings.
      • During initial settings, the humidity was varying between 35 and 55% with a 20 min period. Temperatures were up as high as 60 degF.
      • With the A/C off, the humidity is between 55-60%, T~ 70degF
      • Interlocks on pmt voltage are set to trip at 65% humidity and 90 degF.
      • Junction box controlling the environment parameters failed and the system was off for a while. The voltage supply was replaced and is now working again. Chris (Stanislav) has ordered additional spares.
      • After adjustments, the humidity is about 40% and Temperature at 60 deg F and they seem relatively stable.
    2. Base ADC readback (Zach)
      • The readback of HV, temp and current shows instabilities (see log book). Effort is underway to verify that it is just the readback or changes in the actual values.
      • Mark: Suggest to adjust wait times in the code to see if readback is being affected. There are four different wait times that can be adjusted. Zach is getting advice from Dan
  4. BCAL HDBCAL log book
  5. Reconstruction and Simulation
  6. Technical Construction Report (TCR) update
  7. Calibration
  8. Any other business
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