The SPHERE experiment: Baikal 2010

Antonov, R. A.; Besshapov, S. P.; Bonvech, E. A.; Галкин, В. И.; Dzgatdoev, T. A.; Petkun, A. S.; Подгрудков, Д.; Роганова, Т. М.; Сысоева, Т. И.; Finger, M. H.; Finger, M.; Чернов, Д. В.; Shaulov, S. B.

doi:10.3103/s1062873811030087

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2013

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“…Time sampling step is 25 ns for the 2011 run and 12.5 ns for the 2012 run. For more detailed description of the SPHERE-2 experiment see [17]- [18].…”

Section: The Datamentioning

confidence: 99%

Results on the primary CR spectrum and composition reconstructed with the SPHERE-2 detector

Antonov

Beschapov

Bonvech

et al. 2013

J. Phys.: Conf. Ser.

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First preliminary results of the balloon-borne experiment SPHERE-2 on the allnuclei primary cosmic rays (PCR) spectrum and primary composition are presented. The primary spectrum in the energy range 10 16 -5 · 10 17 eV was reconstructed using characteristics of Vavilov-Cherenkov radiation of extensive air showers (EAS), reflected from a snow surface. Several sources of systematic uncertainties of the spectrum were analysed. A method for separation of the primary nuclei' groups based on the lateral distribution function' (LDF) steepness parameter is presented. Preliminary estimate of the mean light nuclei' fraction f30−150 at energies 3 · 10 16 -1.5 · 10 17 eV was performed and yielded f30−150= (21±11) %.

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“…Time sampling step is 25 ns for the 2011 run and 12.5 ns for the 2012 run. For more detailed description of the SPHERE-2 experiment see [17]- [18].…”

Section: The Datamentioning

confidence: 99%