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02-2-1109-2012/2014
Priority:1
Status: In-progress

Astrophysical Studies in the Space Experiments


Leader:     L.G. Tkatchev

Participating Countries, Institutes and International organizations:
Belarus, Czech Republic, Japan, Mexico, Republic of Korea, Russia.

Scientific Programme:
  • The TUS space experiment has been proposed to measure the energy spectrum, composition and angular distribution of the Ultra High Energy Cosmic Rays (UHECR) at E 10 19-10 20 eV, to study the region beyond the GZK cutoff. Existence of these particles is beyond the Standard Model of particle physics and is of great interest. The study from the orbit is much more effective in comparison with the ground-based detectors. The existing world statistics is assumed to be increased by a factor of 2-3 during 3 years of the global data taking. The TUS detector will make it possible to study UHECP neutrino Extensive Air Showers (EAS) from the space orbit.

  • The aim of the NUCLEON Project is direct CR measurements in the energy range 10 11-10 15 eV and the atomic charge range up to Z40 in the near-Earth space to solve mainly the "knee" problem in the CR spectrum. The CR phenomena in this energy region are investigated in terrestrial experiments by measurement of EAS parameters or in balloon or space experiments. Below ~ 10 14 eV the spectrum and composition are known from direct observation with detectors placed in balloons and earth satellites. However, at higher energies the CR flux is smaller and more difficult for direct and needs observation. Precise measurement of the CR composition and anisotropy will help to test the existing theoretical concepts and will become a basis for further studies.


  • Expected main results in 2013:
    List of projects:
      Project Leader Priority
    (period of realization)
    1. TUS L.G. Tkatchev 1   (2012-2014)
    List of Activities
      Activity or Experiment Leader
    Status
      Laboratory or other
    Division of JINR
    Main researchers
    Experiment TUS L.G. Tkatchev
    Realization
      DLNP V.M. Grebenyuk, S.V. Bektemerova, S.Yu. Porokhovoy, D.V. Naumov, A.V. Tkachenko, F.F. Grinyuk, M. Slunechka, V. Slunechkova, O. Bakina, A. Nikiforov
      VBLHEP A.V. Skrypnik
      LIT S.K. Slepnev
    Experiment NUCLEON L.G. Tkatchev
    Realization
      DLNP V.M. Grebenyuk, S.Yu. Porokhovoy, N.I. Kalinin, V.F. Boreyko, Nguen Man Shat, B.M. Sabirov, A.B. Sadovsky, Z.B. Krumshtein, A.V. Tkachenko, A.A. Timoshenko, N.S. Tolstoy
      VBLHEP N.V. Gorbunov
      LIT V.N. Shigaev
    Preparation of project
    "Showers of knowledges"
    G.A. Shelkov
    Project preparation
      DLNP A.V. Guskov, V.O. Gromov, A.S. Zhemchugov, N.N. Khovansky, V.G. Kruchonok

    Collaboration
    Country or International
    Organization
    City Institute or Laboratory
    Belarus Minsk NC PHEP BSU
    IP NASB
    Czech Republic Prague IP ASCR
    CU
    Japan Wako RIKEN
    Mexico Puebla BUAP
    Republic of Korea Seoul EWU
    Romania Bucharest ISS
    Russia Moscow SINP MSU
    VNIIEM Corporation
    Dubna Raduga
    Korolev "Space Regatta" Consortium
    Ukraine Kharkov ISM NASU

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