[Halld-pid] Start Counter Meeting Minutes, March 9, 2017

[Mark Ito]

Folks,

Find the minutes below and at 
https://halldweb.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_March_9,_2017#Minutes 
.

   -- Mark

___________________


    Minutes

Present:

  * *JLab*: Thomas Britton, Mark Ito (chair), Mahmoud Kamel, Simon Taylor

There is a recording of this meeting <https://bluejeans.com/s/uonsT/> on 
the BlueJeans site <https://jlab.bluejeans.com/>.

We had a very brief meeting. Mahmoud presented his latest results 
<https://halldweb.jlab.org/talks/2017/SC_Meeting_03-09-2017.pdf> from 
his time-walk calibration. Early on we discovered a small problem with 
the analysis which made it hard to discuss the bulk of his results in 
detail, but in summary, he has overhauled his approach. He now makes 
fits to one-dimensional histograms of TDC time vs. ADC time, in various 
intervals of peak pulse height to build up data for the time walk 
correction fit. The fit is to the same function he has been using for 
some time. After that he is getting sub-300-ps resolution in all 
counters, but no marked improvement from what was obtained with his old 
method.

Retrieved from 
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  * This page was last modified on 9 March 2017, at 12:19.


-- 
marki at jlab.org, (757)269-5295

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