학술논문
Extensive performance studies for the ATLAS BIS-MDT precision muon chambers with cosmic rays
Document Type
Periodical
Author
Alexopoulos, T.; Avramidou, R.; Bratzler, U.; Cernoch, C.; Dris, M.; Fassouliotis, D.; Filippas, T.A.; Fokitis, E.; Gazis, E.N.; Ioannou, P.; Katsoufis, E.C.; Kourkoumelis, Ch.; Krepouri, A.; Liolios, T.; Maltezos, S.; Manolopoulou, M.; Palestini, S.; Petridou, Ch.; Polychronakos, V.; Sampsonidis, D.; Savva, P.; Stavropoulos, G.; Tsipolitis, G.; Tzamariudaki, E.; Valderanis, Ch.; Wotschack, J.; Zimmermann, S.
Source
IEEE Transactions on Nuclear Science IEEE Trans. Nucl. Sci. Nuclear Science, IEEE Transactions on. 50(6):2420-2425 Dec, 2003
Subject
Language
ISSN
0018-9499
1558-1578
1558-1578
Abstract
ATLAS (a toroidal LHC apparatus) is a general purpose experiment that will start its operation at the large hadron collider (LHC) at CERN in 2007. The ATLAS detector is designed to explore numerous physics processes by recording, measuring, and investigating the products emerging from proton-proton collisions at energies up to 14 TeV. High-precision muon momentum measurement (dp/p/spl sim/10% at p/sub T/=1 TeV/c) over large areas using monitored drift tube (MDT) chambers is crucial for the ATLAS experiment. More than 1200 MDT chambers, consisting of approximately 370 000 drift tubes, will provide a total coverage of 5500 m/sup 2/. Three Greek universities have taken the responsibility to construct 130 barrel inner small (BIS)-MDT chambers using 30 000 drift tubes of /spl sim/1.7 m length that have been quality tested before assembly. The design of the muon drift tubes aims at high detection efficiency (>95%) and a spatial single tube resolution of