• Corpus ID: 119303587

Drift velocity and pressure monitoring of the CMS muon drift chambers

  title={Drift velocity and pressure monitoring of the CMS muon drift chambers},
  author={Lars Sonnenschein},
  journal={arXiv: Instrumentation and Detectors},
  • L. Sonnenschein
  • Published 2 July 2011
  • Physics, Engineering
  • arXiv: Instrumentation and Detectors
The drift velocity in drift tubes of the CMS muon chambers is a key parameter for the muon track reconstruction and trigger. It needs to be monitored precisely in order to detect any deviation from its nominal value. A change in absolute pressure, a variation of the gas admixture or a contamination of the chamber gas by air affect the drift velocity. Furthermore, the temperature and magnetic field influence its value. First data, taken with a dedicated Velocity Drift Chamber (VDC) built by RWTH… 

Figures from this paper


The CMS experiment at the CERN LHC
The Compact Muon Solenoid (CMS) detector is described. The detector operates at the Large Hadron Collider (LHC) at CERN. It was conceived to study proton-proton (and lead-lead) collisions at a