Difference between revisions of "July 9, 2009 Calorimetry"

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# Announcements
 
# Announcements
 
# Review of Action Items
 
# Review of Action Items
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# Calibration (George Voulgaris): [http://argus.phys.uregina.ca/cgi-bin/private/DocDB/ShowDocument?docid=1293 Summary]
 
 
# BCAL Fabrication (Zisis)
 
# BCAL Fabrication (Zisis)
 
#* Contract status
 
#* Contract status
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#* [http://www.jlab.org/ccc/mail_archives/HALLD/halld-cal/msg01042.html Construction prototype update]
 
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#* Results from First Shipment of Production Fibers
 
−
#** Method: fiber in track, both ends polished, far end blackened, near end coupled to Hamamatsu S2281 photodiode, read out via a picoammeter
 
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#** Sample exponential fits: [[Media:JS008graphs.png]]
 
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#** Attenuation Length by Lot Number: [[Media:FiberShip01.png]]
 
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#** Attenuation Length for all fibers (151 tested to date): [[Media:cummulativehist.png]]
 
 
# FCAL Update
 
# FCAL Update
 
#* MOU, sow (Elton, Matt)
 
#* MOU, sow (Elton, Matt)
−
# [http://www.jlab.org/~somov/bcal_light.pdf Simulations] (Sasha)
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# Simulations  
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#* Backgrounds from Cerenkov light
+
−
#* Acceptance loss due to light guides
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# BCAL Readout
 
# BCAL Readout
 
## Update from USM (Will)
 
## Update from USM (Will)
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## Cost comparisons (Elton)
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# Bcal Readout Review (July 21)
−
## Discussion of Bcal Readout Review (July 21)
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## Reviewers: Stefano Miscetti (INFN) via video, Stepan Stepanyan (Hall B) and Howard Fenker (Hall C)
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### Stefano Miscetti can participate in the review via video. A test of ESNET connection yesterday was very successful.
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## Tentative schedule: July 10: pre-brief material, July 16: slides for presentations.
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### Other reviewers? (Stepan Stepanyan and Howard Fenker ?)
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## Web page: []
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### Tentative schedule: July 10: pre-brief material, July 16: slides for presentations.
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### Tentative Agenda Topics: [[BCAL Readout Review]]
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# Other business
 
# Other business
  

Revision as of 12:08, 8 July 2009

Teleconference Time: 11:00 a.m. EST

  • ESNET and EVO session
  • Phone:
    • +1-800-377-8846 : US
    • +1-888-276-7715 : Canada
    • +1-302-709-8424 : International
    • then enter participant code: 77438230# (remember the "#"). Note: code changed 7/2/09

Items for followup from previous meeting(s)

  1. Procedure to avoid vaseline in Bcal fabrication needs to be approved.
  2. Resolution studies
    • Study impact of inactive material at the end of BCAL on acceptance.
  3. Documentation on fiber first-article
  4. Review calibration procedures
  5. Update cost estimates
    • light guides (USM)
    • temperature stabilization (Tim and Fernando)
    • summing circuits for SiPMs (Fernando)
  6. Impact of gain variations on resolution (especially for summed SiPMs) (Elton)

Documents to Review

  1. Table matrix of Criteria for Bcal Readout

Tentative Agenda

  1. Announcements
  2. Review of Action Items
  3. BCAL Fabrication (Zisis)
    • Contract status
  4. FCAL Update
    • MOU, sow (Elton, Matt)
  5. Simulations
  6. BCAL Readout
    1. Update from USM (Will)
  7. Bcal Readout Review (July 21)
    1. Reviewers: Stefano Miscetti (INFN) via video, Stepan Stepanyan (Hall B) and Howard Fenker (Hall C)
    2. Tentative schedule: July 10: pre-brief material, July 16: slides for presentations.
    3. Web page: []
  8. Other business

Minutes

Attendees:

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