The LHCb Muon System is composed of five detection stations (M1-M5) equipped with a total of 1368 Multi-Wire Proportional Chambers (MWPC) and 12 triple-GEM based detectors. The first station (M1) is placed upstream of experiment calorimeters and thus is equipped with very "light" MWPC made by only two gas-gaps (instead of four) and with triple-GEM based detectors. The chambers have to provide a high detection efficiency, a fast response and a good space resolution. For the first time the performance of different M1 MWPC completely equipped with the final Front-End Electronics, have been tested with cosmic rays. The detection efficiency, the time resolution and the hit multiplicity were measured. Chambers with anode-wire-readout and with cathode-pad-readout were tested and the results are compared. The results obtained will be used to individuate the optimized working conditions of the apparatus and to make a more realistic detector description in the LHCb Monte Carlo simulation.
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Titolo: | Performance of the MWPC of the First Station of the LHCb Muon System |
Autori: | |
Data di pubblicazione: | 2009 |
Serie: | |
Handle: | http://hdl.handle.net/11573/407655 |
ISBN: | 9781424439614 9781424439621 |
Appartiene alla tipologia: | 04b Atto di convegno in volume |