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Bulletin of the Lebedev Physics Institute

, Volume 36, Issue 5, pp 146–149 | Cite as

Method for measuring the PCR proton spectrum in the energy range of > 1016 eV

  • A. M. Anokhina
  • R. A. Antonov
  • E. A. Bonvech
  • V. I. Galkin
  • T. A. Dzhatdoev
  • A. A. Kirillov
  • T. M. Roganova
  • D. V. Chernov
  • S. B. Shaulov
Article

Abstract

Criteria for selecting proton events among the total sequence of events from primary nuclei of cosmic rays with zenith angles θ < 20° are analyzed in the energy region of E 0 ≈ 1016 eV. These criteria are concretized for the case of the SPHERE-2 experiment geometry. The QGSJET-I and QGSJET-II model calculations show that the criteria based on the shape of the transverse distribution of Cherenkov light allow detection of more than 10% of proton events and rejection of 99% nuclear events.

Keywords

Zenith Angle Proton Event Primary Proton Helium Nucleus Shower Axis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Allerton Press, Inc. 2009

Authors and Affiliations

  • A. M. Anokhina
    • 1
  • R. A. Antonov
    • 1
  • E. A. Bonvech
    • 1
  • V. I. Galkin
    • 1
  • T. A. Dzhatdoev
    • 1
  • A. A. Kirillov
    • 1
  • T. M. Roganova
    • 1
  • D. V. Chernov
    • 1
  • S. B. Shaulov
    • 2
  1. 1.Faculty of PhysicsMoscow State UniversityMoscowRussia
  2. 2.Skobeltsyn Institute of Nuclear PhysicsMoscow State UniversityMoscowRussia

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