EAS Observation Conditions in the SPHERE-2 Balloon Experiment

Author:

Bonvech ElenaORCID,Chernov DmitryORCID,Finger MiroslavORCID,Finger MichaelORCID,Galkin VladimirORCID,Podgrudkov DmitryORCID,Roganova TatianaORCID,Vaiman IgorORCID

Abstract

The SPHERE project studies primary cosmic rays by detection of the Cherenkov light of extensive air showers reflected from the snow covered surface of the earth. Measurements with the aerial-based detector SPHERE-2 were performed in 2011–2013. The detector was lifted by a balloon to altitudes of up to 900 m above the snow covered surface of Lake Baikal, Russia. The results of the experiment are summarized now in a series of papers that opens with this article. An overview of the SPHERE-2 detector telemetry monitoring systems is presented along with the analysis of the measurements conditions including atmosphere profile. The analysis of the detector state and environment atmosphere conditions monitoring provided various cross-checks of detector calibration, positioning, and performance.

Funder

MEYS of Czech Republic

Publisher

MDPI AG

Subject

General Physics and Astronomy

Reference29 articles.

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2. Simulating an apparatus for examining the primary cosmic-ray spectrum at 1015–1020 eV;Antonov;Bull. Acad. Sci. USSR Phys. Ser.,1986

3. Detection of reflected Cherenkov light from extensive air showers in the SPHERE experiment as a method of studying superhigh energy cosmic rays

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