[Halld-pid] Time-of-Flight Meeting Minutes, May 5, 2021

[Mark Ito]

Folks,

Please find the minutes from last week here 
<https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_May_5,_2021#Minutes> 
and below.

   -- Mark

      _____________________________


    GlueX TOF Meeting, May 5, 2021, Minutes

Present: Eugene Chudakov, Paul Eugenio, Mark Ito

There is a recording of this meeting 
<https://bluejeans.com/s/uU6SKB7FT@x/>. Log into the BlueJeans site 
<https://jlab.bluejeans.com> first to gain access (use your JLab 
credentials).


      PMT Repair

  * Paul estimates that the work will only take two days. He would like
    to be here for an entire work week nonetheless. He is aiming for
    Sunday June 6 to Saturday June 12.
  * Eugene has submitted the request to have Paul do the work in the
    Hall to Walt Akers. He has been Rolf Ent's contact person in these
    matters in the past.
  * Clearance for a student might be more complicated.


      Air Light Guides

Paul would like to try to couple the light from the short paddles across 
the beam hole to its counterpart on the other side. He wants to install 
ESR tubes to bridge the gap without introducing much material into the 
photon beam. He thinks that the installation could be quick and, if 
problems arise, de-installation would be quick as well. De-installation 
might be complicated by tighter space constraints around the TOF beam 
hold when the detector is in its running configuration. We should 
discuss this with Tim Whitlatch and Beni Zihlmann soon.


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