A large size MICROMEGAS detector for the COMPASS experiment at CERN

Abbon, P; Ball, J; Bedfer, Y; Bernet, C; Delagnes, E; Giganon, Arnaud; Kunne, Fabienne; Le Goff, J M; Magnon, A; Marchand, C; Neyret, D; Pereira, H; Platchkov, S; Rebourgeard, P C; Thers, D

A large size MICROMEGAS detector for the COMPASS experiment at CERN

Authors: P Abbon
J Ball
Y Bedfer
C Bernet
E Delagnes
Arnaud Giganon
Fabienne Kunne
J M Le Goff
A Magnon
C Marchand
D Neyret
H Pereira
S Platchkov
P C Rebourgeard
D Thers
Publication date: 1 January 2003
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Abstract

We have developed and built 12 planes of large-size (40*40 cm/sup 2/) MICROMEGAS detectors. These detectors were installed at CERN and successfully operated during the first year of the COMPASS data taking. All important detector parameters: space and time resolutions, discharge probabilities, noise figure and experimental efficiencies were found to agree with the design values. (6 refs)

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