[Halld-pid] Time-of-Flight Meeting Minutes, August 26, 2014

[Mark M. Ito]

Folks,

Find the minutes below and at 
https://halldweb1.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_August_26,_2014#Minutes 
.

   -- Mark
_____________________________________________

GlueX TOF Meeting, August 26, 2014
Minutes

    Present:
      * FSU: Paul Eugenio, Sasha Ostrovidov, Aristeidis Tsaris
      * JLab: Mark Ito (chair), Beni Zihlmann

Review of Minutes from August 19

    We looked over the [20]minutes.
      * Sasha is still seeing a deficit of TDC hits for some channels as
        much as a factor of two. The problem is still being studied.
      * Sasha would still like to take a long run of cosmics for
        calibration. One half day should be enough. He will look into using
        VNC to run the data acquisition remotely from FSU.
      * Sasha has a plan on how to proceed with the time calibration. The
        plan involved successively refining the event selection used for
        fits.
      * FSU will return the CAEN HV module on their next trip up.

Calibration Meeting Rehash

    We reviewed discussion related to the TOF at the [21]August 13
    Calibration Meeting

    We did could not think of compelling reason to run with something other
    than a standard total energy trigger to look at the time-of-flight.

    Paul also mentioned that to study rates we need to have a target of
    comparable thickness to that of the hydrogen target. [Added in press:
    there is a thick plastic target being planned that would do the job.]

Review of DAQ Tasks

    We look at the [22]laundry list of items to be worked on. The
    discussion focused on two areas.

Monitoring

    We need to get started reviewing existing histograms and perhaps
    refining them for detector monitoring. Mark will ask the experts about
    how to get started.

Event Display

    Aristeidis has a working plug-in, but plans to add some features. We
    thought that he should check-in a preliminary version sooner rather
    than waiting to have all of the planned features. He will try to check
    something in in about a week.

Action Items

     1. Send Sasha instructions on how to use VNC on the gluon cluster.
        (Beni)
     2. Ask how to get started with online monitoring for the TOF. (Mark)
     3. Check-in a preliminary version of the TOF event display plug-in.
        (Aristeidis)

References

   20. 
https://halldweb1.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_August_19,_2014#Minutes
   21. https://halldweb1.jlab.org/wiki/index.php/August_13,_2014_Calibration
   22. https://halldweb1.jlab.org/wiki/index.php/TOF_DAQ_Tasks,_July_8,_2014

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