[Halld-pid] Time-of-Flight Meeting Minutes, August 11, 2015

[Mark Ito]

Folks,

Please find the minutes below and at 
https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_August_11,_2015#Minutes 
.

   -- Mark
   ________________________


    GlueX TOF Meeting, August 11, 2015, Minutes

Present:

  * *FSU*: Hussein Al Ghoul, Brad Cannon, Aristeidis Tsaris
  * *JLab*: Mark Ito (chair), Beni Zihlmann


      Review of minutes from July 28

We looked at the minutes 
<https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_July_28,_2015#Minutes>. 


Beni reported that everything is on in the Hall now for the TOF. Two 
weeks ago he did find the HV crate turned off.


      Calibration Trip Report

Brad visited JLab for two weeks and worked on learning Beni's 
calibration system.

  * *Week 1*. He spent the time looking at Beni's code, step-by-step.
    The commands to run the calibration are very simple.
  * *Week 2*. He worked on understanding multi-threading and how to do
    batch farm submission. He has been asking Beni, Justin Stevens, and
    Paul Mattione for guidance.

The current task is to get batch submission going. He is going to look 
at Kei Moriya's recently announced procedures 
<https://mailman.jlab.org/pipermail/halld-offline/2015-August/002119.html> 
for using SWIF in the Hall D context.


      ADC Calibration

Beni has done some additional tests on the effect of the angle of 
incidence of track on energy deposition. He finds that the angles are so 
small, less than 15 degrees, that they make very little difference and 
can be ignored in the initial calibration at least. As expected, when he 
matches TOF hits to tracks, the low energy noise just above threshold 
largely disappears leaving only hits from corner clippers. Work continues.


      Action Items

  * Batch farm submission of calibration jobs.
  * Further work on ADC calibration.
  * Install Bryan Moffit's library into the online system as a first
    step in doing the time bin size calibration.

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  * This page was last modified on 12 August 2015, at 10:30.


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