The Cosmic Ray Mass Composition in the Energy Range 10^15 - 10^18 eV measured with the Tunka Array: Results and Perspectives

Abstract

The final analysis of the Extensive Air Shower (EAS) maximum X_max depth distribution derived from the data of Tunka-25 atmospheric Cherenkov light array in the energy range 3.10^15 - 3.10^16 eV is presented. The perspectives of X_max studies with the new Cherenkov light array Tunka-133 of 1 km^2 area, extending the measurements up to 10^18 eV, are discussed.

6 pages, 7 figures, Proceedings of CRIS 2008 - Cosmic Ray International Seminar - Malfa, Salina Island, Eolian Islands, Italy, September 15 - 19, 2008, to be published in Nucl. Phys. B (Proc. Suppl.), 2009

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