Difference between revisions of "Minutes-6-23-2016"
From GlueXWiki
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= Prototype: requirements and very preliminary design = | = 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 +HV on sense wires, -500V on field wires, -1.4kV on the upstream cathode [http://www.jlab.org/Hall-D/detector/trd/TRD_Garfield_NO_second_cathode.png Garfield field/drift time simulations] | ||
# [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] | ||
| + | |||
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Revision as of 11:18, 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 +HV on sense wires, -500V on field wires, -1.4kV on the upstream cathode Garfield field/drift time simulations
- 3D schematic
