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Cosmic Gamma-Quanta (>100 TeV) Observation

#1106


Research of Very High Energy Local Gamma-Quanta Sources by Mirror Telescopes of Cherenkov Radiation and Development of Scintillation Methods for Gamma-Quanta Sources Observation with Energy > 100 TEV

Tech Area / Field

  • SAT-AST/Astronomy/Space, Aircraft and Surface Transportation

Status
8 Project completed

Registration date
03.09.1997

Completion date
30.05.2002

Senior Project Manager
Hamada S

Leading Institute
FIAN Lebedev, Russia, Moscow

Collaborators

  • CNRS / Ecole Polytechnique, France, Palaiseau

Project summary

The designed, created and functioning installation on Tian-Shan mountain station of FIAN - telescope system of Cherencov radiation with angular resolution ~0.1° - allows to get the stable results on the galactic and extra-galactic sources of gamma-quanta in the energy interval 1012-5 ґ 1013. The effective observation of the gamma-quanta with the flux Ј 10-12sm-2s-1 provided by exclusively large full angle of observation Cherenkov telescope (> 8°) that determined by square light receptors with 144 photomultipliers that allows to analyze the extensive air showers on the surface of ~ 8 ґ 104 m2 around the telescope.

In the energy region higher then 1014 eV, the experiment held by FIAN showed that selection of extensive air showers from primary gamma-quanta among cosmic rays showers if possible only at the correlation of effective detector area of electrons and muons і 7/10. Global search of gamma-quanta with the energy higher then 1014 eV is effective by means of calorimeter (spectrometer) on the criteria of absence of hadrons of high energy in shower's core.

All three trends will be developed at Tien-Shan high-mountain station of Lebedev Physical Institute of Russian Academy of Science in Kazakhstan and at Nor-Amberd scientific station of Lebedev Physical Institute of Russian Academy of Science in Armenia.

Telescope SHALON-2 is being assembled and will start operating in order to get a space image of an electron-photon cascade of Cherenkov radiation in the atmosphere by means of stereo pair of mirror telescopes SHALON-1 and SHALON-2. 90-channel chronotron is under construction to investigate the energy and spatial-timing characteristics of muons in extensive air showers.

The project may be of fundamental importance and applicable for very high energy physics and astrophysics, in particular in the following scientific centers:


- Whipple Observatory, Harvard-Smithsonian Center (USA)- leader - prof. T.Weekes
- Institute National de Physique Nucleaire (France) - leader - prof. J.N.Capdevielle
- LPNHE, Ecole Polytechnique (France) - leader - prof. P.Fleury
- Institute of Physics (Italy) - leader - prof. G.Navarra
- University of Leeds (England) - leader - prof. A.A.Watson
- National Aeronautics and Space Administration (USA) - leader - prof. W.V.Jones
- TATA Institute of Phundamental Research (India) - leader - prof. B.V.Shreekantan
- University of Durham (UK) - leader - prof. A.W.Wolfendale
- CERN, Geneva, Switzerland - leader - prof. B.Pattison
- Bhabha Atomic Research Centre (India) - leader - prof. C.L.Bhat
- Daphnia/SAP CE Saclay (France) - leader - prof. P.Goret
- Indian Institute of Astrophysics (India) - leader - prof. R.Cowsic


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