Difference between revisions of "December 17, 2014 Calibration"

Revision as of 17:30, 18 December 2014

GlueX Calibration Meeting
Wednesday, December 17, 2014
11:00 am, EDT
JLab: CEBAF Center, F326

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Agenda

1. Announcements
2. Status Update
3. Calibration status/updates
   1. Calorimetry
   2. Tracking
   3. Timing
      1. TOF Matching (Paul)
         

         TOF Matching (Paul)
4. Calibration Skims
5. Simulations
6. Data Monitoring
   1. Quick summary by Kei
   2. Commissioning Software
   3. Run Browser, Plot Browser, and Time Series webpages
7. Peak hunting / higher-level analyses
8. AOB

Minutes

Attendees: Mark D., Mark I., Dave M., Paul M., Will M., Curtis M., Kei M., Zisis P., Eric P., Andrei S., Matt S., Elton S., ST, Justin S., Beni Z.

• Status of ccdb:
  • Entries for rollower/tframe for TDC has been added to ccdb. The relevant parameters will also be in the data stream (at the beginning of the run? how do we handle the multiple files per run?)
  • Placeholder for v_eff for TOF scintillators has been added.
• BCAL calibrations
  • SiPM gains based on Andrei's initial analysis
    • No measured constants for ~50% of the channels in the BCAL due to too low gain, threshold effects -- put in rought guess
    • Will M. has reconstructed π0 peak at ~160 MeV
    • Mark D. added scale factors to move peak down to nominal mass.
  • Next step is to add attenuation lengths to the database (the table already exists)