[Halld-pid] Time-of-Flight Meeting Minutes, March 3, 2015

[Mark Ito]

Folks,

Please find the minutes below and at

https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_March_3,_2015#Minutes

   -- Mark
___________________________________________

GlueX TOF Meeting, March 3, 2015, Minutes

Present:
*FSU*: Hussein Al Ghoul, Paul Eugenio, Sasha Ostrovidov, Aristeidis Tsaris
*JLab*: Mark Ito (chair)

Review of minutes from February 24

We went over the minutes 
<https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_February_24,_2015#Minutes>. 


  * We discussed changing the pedestal level in the FADCs to 100. We
    thought that that would be a good idea just to be consistent with
    the rest of the detectors.
  * Paul reminded us that we should be keeping track of all significant
    actions involving the TOF in the TOF electronic logbooks. He also
    re-raised the issue of having log entries automatically emailed to a
    list, perhaps halld-pid at jlab.org. Mark volunteered to ask about such
    a capability.


Calibration

Sean showed some plots showing time-of-flight between the start counter 
and the TOF. Bands due to different particles are not particularly 
visible. He emphasized the need for calibration constants for timing, 
even preliminary ones.
Sasha is continuing to work on the calibration with beam data. He has a 
calibration based on cosmics that is nearly ready for use. He will put 
it in the CCDB sometime in the next two or three days.
For the beam data, he is having trouble with getting constants for hits 
at the edges of the array.

Run Preparation

  * We looked at the Hot Check-Out list
    <https://halldweb.jlab.org/talks/2015/hot_check_out_tof.pdf>. Sasha
    pointed out that we should also be checking the discriminator scalers.
  * FSU will turn on detectors and start their check-out procedure
    starting this afternoon. Mark will inform Alexandre Deur of these plans.

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