Difference between revisions of "Minutes-6-23-2016"
From GlueXWiki
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#* 20 mm drift gap | #* 20 mm drift gap | ||
#* Max drift time < 3 microseconds (to be used within the standard GlueX DAQ): | #* Max drift time < 3 microseconds (to be used within the standard GlueX DAQ): | ||
| − | #** | + | #** +2kV on sense wires, -500V on field wires, -1.4kV on the upstream cathode, downstream cathode (with strips) on ground [http://www.jlab.org/Hall-D/detector/trd/TRD_Garfield_NO_second_cathode.png Garfield field/drift time simulations] |
| + | #** Adding additional cathode separates the drift | ||
# [http://www.jlab.org/Hall-D/detector/trd/Drawing1_Layout1.pdf 3D schematic] | # [http://www.jlab.org/Hall-D/detector/trd/Drawing1_Layout1.pdf 3D schematic] | ||
Revision as of 11:20, 23 June 2016
June 23, 2016 Transition Radiation Detector meeting
Recent TRD reports at the GlueX collaboration meeting
Prototype: requirements and very preliminary design
- Requirements:
- Use existing FDC pre-amps, fADC125, connectors, cables
- Wires and strips at 90 deg.;
- One 24-channel pre-amp for the wires and one pre-amp for the strips.
- Active area sizes:
- 240 mm across wire direction: sense wire pitch of 10 mm
- 120 mm across strip direction: strip pitch of 5 mm.
- Field wires in between sense wires with 10 mm pitch.
- 20 mm drift gap
- Max drift time < 3 microseconds (to be used within the standard GlueX DAQ):
- +2kV on sense wires, -500V on field wires, -1.4kV on the upstream cathode, downstream cathode (with strips) on ground Garfield field/drift time simulations
- Adding additional cathode separates the drift
- 3D schematic
