Straw working group. Introduction. Status and plans 2011. Module 0 The frame is in 154 Straws (report by Neil and Yuriy ) Parts and tooling ready by the end of February 64-straw prototype: Test beam with new web and cover with TDC. (validation!) Electronics
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Test beam with new web and cover with TDC. (validation!)
Rate >100kHz/cm2 and s ~ 25 mm.
High voltage 1
Anode planeWorking principle
High voltage 2
1 ) Conversion stage:
Ionization of gas by the charged particle which produces electron-ion pairs.Electrons directed by E1 (0.1 to 1 kV / cm) to the micro-grid, and cross the mesh holes.
2 ) Amplification stage:
E2 (≈ 50 kV/cm) >> E1 avalanche, electronsmulitplication.