Title :
Study of the drift properties of high-pressure drift tubes for the ATLAS muon spectrometer
Author :
Branchini, P. ; Baroncelli, A. ; Ceradini, F. ; Graziani, E. ; Iodice, M. ; Orestano, D. ; Passeri, A. ; Petrucci, F. ; Tagliaventi, S. ; Tonazzo, A.
Author_Institution :
Dipt. di Fisica "E. Amaldi, "Univ. "Roma Tre", Rome
Abstract :
High-pressure monitored drift tube (MDT) chambers are used as precision tracking detectors in the Muon Spectrometer of the ATLAS experiment at the Large Hadron Collider. MDT chambers, operated at 3 bar absolute pressure with 93% argon 7% carbon dioxide gas mixture, were tested with cosmic rays at the Roma TRE test site, and their properties upon variations of the operating conditions are discussed. The improvement of spatial resolution using the measurement of a fraction of the collected charge, exploiting the final version of the MDT electronics, is considered
Keywords :
cosmic ray apparatus; drift chambers; muon detection; particle spectrometers; 3 bar; ATLAS muon spectrometer; Large Hadron Collider; argon-carbon dioxide gas mixture; cosmic rays; high-pressure monitored drift tube chambers; Argon; Carbon dioxide; Cosmic rays; Detectors; Large Hadron Collider; Mesons; Monitoring; Spatial resolution; Spectroscopy; Testing; Atlas detector; drift tubes; particle measurement; pressure; temperature;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2006.869833
