[Halld-pid] Start Counter Meeting Minutes, February 12, 2015

[Mark Ito]

Folks,

Please find the minutes below and at

https://halldweb1.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_February_12,_2015#Minutes 
.

   -- Mark
_________________________________________________________

GlueX Start Counter Meeting, February 12, 2015
Minutes

  * *FIU*: Werner Boeglin, Mahmoud Kamel
  * *JLab*: Eugene Chudakov, Mark Ito (chair), Eric Pooser, Simon Taylor

 1. Review minutes from the February 5 meeting
    <https://halldweb1.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_February_5,_2015#Minutes>

 2. Cable Swap Log Book Entry 3320190
    <https://logbooks.jlab.org/entry/3320190>
 3. Tracking ST Update
    <https://halldweb1.jlab.org/talks/2015/ST_Update_Feb_12_2015.pdf>
 4. Calibration
 5. Plans for Spring run
      * DAQ tasks for this run (TOF version)
        <https://halldweb1.jlab.org/wiki/index.php/TOF_DAQ_Tasks,_January_22,_2015>

 6. NIM paper?


Cable Swap

Eric reported that Nick Sandoval and Chris Stanislav did a systematic 
check of all cables in the Hall and found swaps 
<https://logbooks.jlab.org/entry/3320190> for counters 1 and 2 and for 
22 and 23 going from the ST2 boards to the ST3. The cables had been 
mislabeled. They are now fixed. This explains the anomalously low rates 
Eric was seeing for "counter 2" last Fall.
Eric will get the correct translation table into the CCDB both for Fall 
2014 data and for data going forward.

Status in Hall

Eric reported.

  * The new flange has been installed and the start counter mounted on
    the target cart.
  * Survey was done.
  * The next step is to cable up the ST2s and do a check.
  * Eric will look at a method to attached the temporary target to the
    nose of the start counter.


Start Counter Efficiency Study

Eric presented work he has done to understand hits from the start 
counter in preparation for doing an efficiency study using charged 
tracks. See his slides 
<https://halldweb1.jlab.org/talks/2015/ST_Update_Feb_12_2015.pdf> for 
details. In particular he described cuts for reducing hits not 
associated with the event.

DAQ Tasks

After the collaboration meeting, Werner, Eric, and Mahmoud will get 
together and produce a list, like that for the TOF 
<https://halldweb1.jlab.org/wiki/index.php/TOF_DAQ_Tasks,_January_22,_2015>, 
tailored for the start counter.

NIM Paper

Writing a NIM paper has long been in the thinking at FIU. It would serve 
also as a major component of Eric's thesis.

Retrieved from 
"https://halldweb1.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_February_12,_2015" 


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/halld-pid/attachments/20150213/236b4a99/attachment-0002.html>