Event-by-event study of CR composition with the SPHERE experiment using the 2013 data

R A Antonov,T V Aulova,E A Bonvech,D V Chernov,T Dzhatdoev,Mich Finger,V I Galkin,D A Podgrudkov,T M Roganova

24TH EUROPEAN COSMIC RAY SYMPOSIUM (ECRS)（2015）

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Abstract

We present an event-by-event study of cosmic ray (CR) composition with the reflected Cherenkov light method. The fraction of CR light component above 5 PeV was reconstructed using the 2013 run data of the SPHERE experiment which observed optical Vavilov-Cherenkov radiation of extensive air showers, reflected from snow surface of Lake Baikal. Additionally, we discuss a possibility to improve the elemental groups separability by means of multidimensional criteria.

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Key words

Radiation Detection

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