CLAS Cerenkov Detector Simulations and Design Analysis

Alexander V. Vlassov, Mikhail V. Kossov

Institute of Theoretical and Experimental Physics
B.Cheremushkinskaya, 25, Moscow, 117259 Russia

Volker D. Burkert

Jlab, 12000 Jefferson Avenue, Newport News,
Virginia 23606,USA

• Overview.
• Main concepts of CC package
  • CLAS Cerenkov detector
  • Definitions and some terminology
  • Structure of the CC package
  • Physics aspects of the ray-tracing procedure
• Choice of the radiator gas for the Cerenkov detector
  • Mean number of photo-electrons.
  • Detector efficiency dependence on the gas refraction index
  • Transparency of radiator gases
  • Efficiency of pion detection.
• Design improvements
  • Cylindrical mirror implemention
  • Optimization of the mirror positions
  • Mirrors alignment procedure
• Trigger estimations
• Particle detection efficiency estimations
  • Electron efficiency
  • Positron efficiency
  • Pion detection efficiency and rejection
  • Photon detection probability and background estimations
• Summary
• References
• About this document ...