PrimEx weekly meeting minute on June 3

[Liping Gan <lgan@jlab.org>]

Friday, June 3, 2005 PrimEx meeting Minutes

Attending:
   E. Clinton, R. Demirchyan, L. Gan, A. Gasparian, M. Ito, D. McNulty, 
V. Mochalov, M. Payen, A. Teymurazyan,
   K. Hardy, L.Benton, K. Broadnax, S. Danagoulian, Y. Prok, M. Grisson, 
L. McLaughlin, N. Woods
On phone -  None


agenda:
   1. Appointment of secretary: all
   2. Review of last meeting's minutes: all
   3. PrimEx Introductory Lecture Series: Vasily
   4. New software release, rel-3-1: Mark
   5. Tagger timing issues: Eric
   6. Flux files: Aram
   7. Livetime and beam trips: Aram
   8. HyCal timing: Dustin
   9. Review of project list: all

 

Current secretary: Liping.
Ashot has been nominated for the next week's secretary
 
1. Welcome three new summer students from UNCW: Letisha, Mike and Nick

2. Minutes of last meeting approved.

3. Vasily proposed to have a series of PrimEx Introductory lectures for 
summer students. The first three lectures will be given by Mark,
   Mike and Dustin; Vasily also reported on Compton calibration work 
group meeting. Calibration and monitoring the HYCAL gain by
   using Compton events was suggested; Vasily summarized the following  
from the HYCAL software group meeting:
   (1)codes cross-check, (2) create new DB, (3) new bank (4) New 
library. Finally, Vasily proposed a task list for summer students.

4. Mark announced the  new software release, rel-3-1.

5. Eric showed the histogram of time different of tagger E-T counters. 
He will present his suggestions of tagger timing
   cuts and efficiency of cuts shortly. He also pointed that the double 
peaks on the  TDC of tagger #9 T counter disappeared if one
  triggered on Hycal  trigger instead of the MasterOR . It suggested 
that the double peaks was caused by the #9 T-counter
  trigger cable delay in the MasterOR triggers.  

6 Aram showed the live time as function of clock. There are a few jumps 
over the run. He will show how these jumps would correlate to the
   beam quality and other issues next time.

7 Dustin presented his work on HYCAL time calibration. It is important 
to obtain  individual time offset for each
  group of HYCAL detector group. This work should be continued.