Advertisement

Preliminary results from the TUS ultra-high energy cosmic ray orbital telescope: Registration of low-energy particles passing through the photodetector

  • P. A. KlimovEmail author
  • M. Yu. Zotov
  • N. P. Chirskaya
  • B. A. Khrenov
  • G. K. Garipov
  • M. I. Panasyuk
  • S. A. Sharakin
  • A. V. Shirokov
  • I. V. Yashin
  • A. A. Grinyuk
  • A. V. Tkachenko
  • L. G. Tkachev
Proceedings of the 34th National Conference on Cosmic Rays

Abstract

The TUS telescope, part of the scientific equipment on board the Lomonosov satellite, is the world’s first orbital detector of ultra-high energy cosmic rays. Preliminary results from analyzing unexpected powerful signals that have been detected from the first days of the telescope’s operation are presented. These signals appear simultaneously in time intervals of around 1 μs in groups of adjacent pixels of the photodetector and form linear track-like sequences. The results from computer simulations using the GEANT4 software and the observed strong latitudinal dependence of the distribution of the events favor the hypothesis that the observed signals result from protons with energies of several hundred MeV to several GeV passing through the photodetector of the TUS telescope.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Garipov, G.K., et al., Exp. Astron., 2015, vol. 40, p. 315.ADSCrossRefGoogle Scholar
  2. 2.
    Aab, A., et al., Nucl. Instrum. Methods Phys. Res., Sect. A, 2015, vol. 798, p. 172. doi 10.1016/j.nima.2015.06.058CrossRefGoogle Scholar
  3. 3.
    Fukushima, M., EPJ Web Conf., 2015, vol. 99, p. 04004. doi 10.1051/epjconf/2015990400410.1051/epjconf/20159904004CrossRefGoogle Scholar
  4. 4.
    Agostinelli, S., et al., Nucl. Instrum. Methods Phys. Res., Sect. A, 2003, vol. 506, no. 3, p. 250.ADSCrossRefGoogle Scholar
  5. 5.
    Data Book for PM Tubes, Hamamatsu, 1998.Google Scholar
  6. 6.
    Voevodin, V.V., et al., Otkrytye Sist. SUBD, 2012, no. 7, p. 36.Google Scholar

Copyright information

© Allerton Press, Inc. 2017

Authors and Affiliations

  • P. A. Klimov
    • 1
    Email author
  • M. Yu. Zotov
    • 1
  • N. P. Chirskaya
    • 1
  • B. A. Khrenov
    • 1
  • G. K. Garipov
    • 1
  • M. I. Panasyuk
    • 1
    • 2
  • S. A. Sharakin
    • 1
  • A. V. Shirokov
    • 1
  • I. V. Yashin
    • 1
  • A. A. Grinyuk
    • 3
  • A. V. Tkachenko
    • 3
  • L. G. Tkachev
    • 3
  1. 1.Skobeltsyn Institute of Nuclear PhysicsMoscow State UniversityMoscowRussia
  2. 2.Faculty of PhysicsMoscow State UniversityMoscowRussia
  3. 3.Joint Institute for Nuclear ResearchDubna, Moscow oblastRussia

Personalised recommendations