Difference between revisions of "Meeting-9-28-2017"

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= Minutes =
 
= Minutes =
  
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Participants:Naomi, Alex B., Dr. Mike Staib (CMU) Alexander A., Beni, Simon, Sergey, and Lubomir (JLab).
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Participants:Curtis, Naomi (CMU) Alex B., Marouen, Beni, Simon, Sergey, Cody, and Lubomir (JLab).
  
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== CDC ==
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== Collaboration meeting ==
  
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- Discussing the plot Naomi showed yesterday on the analysis meeting - in MC, CDC efficiency going slightly down for the outer layers. Simon explains it with the tracking: when you "swim" you start from the inner ring and the multiple scattering is not taken into account (unlike the tracking itself).  
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- So far one slot in the tracking session (Mike's alignment), however it is not clear who wants to have a presentation. In principle we have short updates: CDC dE/dx amplitude vs integral (Naomi), dE/dx angular dependence (Lubomir), FDC efficiency (Alex A.), MC efforts, Simon's tracking modifications, FDC threshold upgrade. Naomi will decide how to organize the session.
  
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- Naomi discussed with Beni what should be put in the CCDB for the CDC threshold.
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== CDC ==
  
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- We discussed if it is worth using "FDC amplitude" mode 9 for the CDC readout. Naomi already demonstrated the advantage of using the pulse height of the first peak, instead of the integral for the dE/dx. Sergey explains the fact that most of information is in the first peak by space charge effects, that were seen in the theta dependence of the dE/dx. If the DAQ permits it is worth having information for two peaks (NPK parameter in the firmware =2). All this requires testing
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- The plan is to start turning on the CDC systems and then do tests with cosmics. So far only the crates are on.
  
 
== FDC ==
 
== FDC ==
  
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- Simon is working on better treatment of the big drift times in the FDC that create the 30 deg structure Alex A. has observed also in MC.  
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- The FDC chiller and LV system has been turned on (see [https://logbooks.jlab.org/entry/3486218]). Issues with the
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== fADC125 ==
 
== fADC125 ==

Revision as of 15:25, 28 September 2017

September 28, 2017 Drift Chamber meeting

Connection

  1. Instructions for Bluejeans meeting connection
  2. Meeting ID: 290664653

Headline text

  1. To join via a Web Browser, go to the page [1] https://bluejeans.com/290664653.

Agenda

  1. Collaboration meeting agenda
  2. CDC update
  3. FDC update
  4. Tracking
  5. fADC125
  6. Other


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