[Halld-pid] Time-of-Flight Meeting Minutes, May 2, 2017

[Mark Ito]

Please find the minutes here 
<https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_May_2,_2017#Minutes> 
and below.

_____________________________


    GlueX TOF Meeting, May 2, 2017, Minutes


Present:

  * *FSU*: Paul Eugenio, Sasha Ostrovidov
  * *JLab*: Thomas Britton, Eugene Chudakov, Mark Ito (chair), Simon
    Taylor, Beni Zihlmann

There is a recording of this meeting <https://urldefense.proofpoint.com/v2/url?u=https-3A__bluejeans.com_s_aaQAm_&d=DwICaQ&c=lz9TcOasaINaaC3U7FbMev2lsutwpI4--09aP8Lu18s&r=hgunAy1h3LRwgc24pRBGK9CGgfsRuNrTtHX3pGAOIns&m=QAFTdAKQurDm74iDSHmpwxUQnX-IG40S1iC0wjqiC9I&s=bC5NJpyJW2MO8u4-AAWbq6v5mYaVIrvNkNwGoyGZWBQ&e= > on 
the BlueJeans site. Use your JLab credentials.


      Announcements

Brad Cannon will be giving the TOF report at the upcoming collaboration 
meeting 
<https://halldweb.jlab.org/wiki/index.php/GlueX-Collaboration-May-2017#Tuesday_May_16.2C_2017>. 



      NIM Paper

When finals are over at FSU, Paul will make production of the NIM paper 
a priority.


      Review of minutes from the previous meeting

We reviewed the minutes from April 18 
<https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_April_18,_2017#Minutes>. 


  * *CAEN ADC*. Chris Stanislav could not find the ADC in his lab. He is
    checking other locations.
  * *Lucite Shield Study*. Thomas notes that there has been progress in
    the comparison, in other contexts, of HDGeant vs. HDGeant4. He will
    re-try his comparison for the Lucite shield simulation. He remarked
    that the comparison effort could use more people power. Beni
    mentioned that even with HDGeant, the simulated detector response
    was never studied carefully. He also announced that Brad has started
    looking at efficiencies. Thomas will meet with Brad and plan a study
    of simulated detector response, along with the HDGeant/HDGeant
    comparison.


      Calibrations

Beni has been hampered by farm jobs timing out after 72 hours of 
walltime. They should be complete before that. He is trying to get 
finer-grained (time-wise) calibrations for runs beyond about 30800. He 
thinks he has found a way to get the farm to cooperate. If so, the 
calibrations should be done in about a week.


      Active Dividers

Beni reports that the spare counter is still mounted on the TOF. He will 
talk to Tom about moving it to the ESB.

Vladimir Popov gave Beni board with 6 LEDs. Beni wants to collect light 
from the device in a fiber and insert light into the test counter. This 
will allow tests at high rate. He plans to use a scope-as-DAQ to collect 
the data.


      Counter Reconfiguration

We could not discuss this seriously without Paul, but we agreed we need 
to start discussion soon because of the long lead time and detector down 
time required.


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