GlueX PID Meeting, October 15, 2010

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Location, Time

Friday, October 15, 2010
2:00 pm EDT
JLab: CEBAF Center, Room F326/7
ESNet: 8542553
EVO: direct meeting link
Conference Group: 800-377-8846, participant code: 77438230
Slides: talks can be deposited in the directory /group/halld/www/halldweb1/html/talks/2010-10 on the JLab CUE (you have to be a member of the "halld" group). This directory is accessible from the web at https://halldweb1.jlab.org/talks/2010-10/ .

Agenda

  1. Announcements
  2. Minutes from the last meeting
  3. Time-of-Flight
    1. Prototype Status
    2. Calibration system
    3. Mechanical interface to support structure: real estate planning
    4. MOU status
  4. Start Counter Status
    1. MOU plans
  5. Target
    1. Refrigerator update
    2. MOU status
  6. Action Items

Minutes

New Note 26

tim, rory, beni, hovanes, elton, eugene, mark sasha O.


all 8 pmts arrived seem to work splitters have arrived gain slightly less than first two 2.5-3.5 M

target hydrogen only OK helium an issue, look at it carefully Chris start in fall review schedule and budget

after primex run umass mou target part and electronics testing part, an undergraduate has been hired, hopefully though next academic year, will look for one more student, waiving the indirect costs Elton: move MOU through state of MA broke, cutting funding to higher ed trying to pull money out of grants undergradutes end up $15/hour elton explains the chain: 

department head, vice chancellor for research

solid target in there as well graduate student indentified electronics: flash adc's probably both have students here in summer transfer effort to UMass

when are we buying refrigerator? Eugene: it is in the budget for this fiscal year

Sasha

• money to equip production room, purchases to outfit lab have started • having hard time with 3m buying ESR material, getting run-around, offer square sheets • working on missing tdc signals mystery • 40% have no good adc hit • even with good adc hit 25% with no TDC • new trigger system, two long paddles • 6 signals from three counters • switch from common start to synchronous mode • two trigger pmts • 70% good adc's, one of TDC hits missing • see overflow bits • synch reset every 4 microseconds • TDC, F1, • why not a circular buffer? • VME bridge

Status of the MOU

Eugene: idea to look at tubes for some months confirm problems reported by FSU might be issue with light collection, low signal, efficiency

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