GlueX Start Counter Meeting, July 26, 2012
GlueX Start Counter Meeting
Thursday, July 26, 2012
10 am EDT
JLab: CEBAF Center F326/327
Agenda
- Announcements
- Review minutes from previous meeting
- Mechanical Design
- Read-out Design
- Simulation:
- Contract
Communication Information
Video Conferencing
- ESNet: 8542553
- EVO:
- Direct meeting link
- Phone Bridge ID: 13 2615
Slides
Talks can be deposited in the directory /group/halld/www/halldweb1/html/talks/2012-3Q
on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2012-3Q/ .
Minutes
start counter meeting notes
Describe your new note here.
chuck, beni, eugene, sasha, mark werner, puneet
• scintillator has not been ordered
• contacted eljen, asked about diamond milled edges
• place order next week
• wrapping the scintillator for cross talk • eljen have double aluminized mylar, two microns thick, used for entry windows for alpha detectors to make them light tight ∘ could wrap entire counter ∘ they have reject material that we could get for cheap, 1000 A of Al on each side
• chuck will send drawings
• thickness of mylar thinner than tolerance of detector
• got the boards on Monday ∘ one board with row of SiPM's, 50 and 100 micron
• check digitation details • figure out what thresholds are being applied for the rates • fixed sized sensors • hdgeant, threshold remove hits below .150 MeV • 150 cm attentuation length
• sensor 3 x 12 mm • air gap at the end .1 mm
implement edges on to the bent geometry