[Halld-pid] Time-of-Flight Meeting Minutes, January 27, 2015

[Mark Ito]

Friends,

Please find the minutes below and at 
https://halldweb1.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_January_27,_2015#Minutes 
.

   -- Mark
____________________________________________


GlueX TOF Meeting, January 27, 2015, Minutes

Present:

  * *FSU*: Brad Cannon, Sasha Ostrovidov, Aristeidis Tsaris
  * *JLab*: Eugene Chudakov, Mark Ito (chair), Beni Zihlmann


Calibration Status

Sasha gave the report.

  * He is almost done with putting calibration constants into the TOF
    hit factory.
  * He has been putting constants into a CCDB SQLite file. He need to
    transfer them to the MySQL database at JLab.
  * He has numbers for time-walk corrections, time offsets, and speed of
    light. There are still global offsets in time difference, one per
    plane (top vs. bottom or north vs. south), to be determined. These
    can be addressed by looking comparing time differences with the
    position of charged particles hitting the TOF.
  * Sasha is working on the sim-recon trunk. He will have to move the
    commissioning branch to pick up the run-by-run calibrations for
    resolving the 6-fold global time ambiguity of the CAEN TDCs.


DAQ Tasks for this Run

We had a discussion of many items on the list 
<https://halldweb1.jlab.org/wiki/index.php/TOF_DAQ_Tasks,_January_22,_2015>. 
For next time we hope to have basic calibrations in place, formulate a 
conceptual design for a gain balancing procedure, and have preliminary 
numbers for time resolution of the detector.

Retrieved from 
"https://halldweb1.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_January_27,_2015"

-- 
Mark M. Ito, Jefferson Lab, marki at jlab.org, (757)269-5295

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