Sep 15, 2008 Calorimetry
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Usual Time: 10:30 ET.
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- then enter participant code: 39527048# (remember the "#")
Contents
Items for followup from Sep 2 calibration meeting
- Each subsystem must complete blanks in specification table.
Items for followup from Aug 18 meeting
- George: report on trip to Edmonton
- Estimates of pedestal width (electronic noise, etc.) for FM PMTs. The dark rate should be negligigle in this case.
- Resolution studies with up-to-date geometry (Blake) ONGOING
- Resolution studies with different segmentation for the outer section. - LOWER PRIORITY
- Add F100 rad hard glass to simulation. - Matt will do this
- Decision on Bcal sampling fraction needed by Sep. - Work by Stamatis (on vacation) will be summarized upon his return.
Documents to Review
Tentative Agenda
- Announcements
- Results on study of increased sampling in BCAL
- Status of simulation tasks and discussion of priorities
- Improved simulation of resolutions
- Include realistic threshold for FM option
- Studies of timing resolution
- Study impact of inactive material at the end of Bcal on acceptance
- Inactive material includes light guides, light detector, cables, dark box or cover, etc.
- Comparison between SiPM and FM options
- How many (which) changes in geometry should be studied?
- Improved simulation of resolutions
- Final agenda for the GlueX-Collaboration-Sept-2008
Post Discussion on SiPMs
- SiPM: A35H vs A20H devices
- Delivered types
- 1x1 A20H contract units were Getter 2
- 3x3 A20H contract units were Getter 1
- 1x1 A35H contract units were Getter 2
- 3x3 A35H contract units were Getter 2
- 3x3 A35H engineering (JLab only) units were Getter 1
- Options for arrays:
- 3x3 A20H Getter 1 or Getter 2
- 3x3 A35H Getter 1 only
Minutes
Attending: