2025, Ivanova, A. L., Astapov, I. I., Kindin, V. V., Kompaniets, K. G., Petrukhin, A. A., Yashin, I. I., Астапов, Иван Иванович, Киндин, Виктор Владимирович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

2020, Chernukh, D., Krykov, A., Silaev, A., Suvorkin, Y., Astapov, I., Kindin, V., Kokoulin, R., Kompaniets, K., Petrukhin, A., Yashin, I., Астапов, Иван Иванович, Киндин, Виктор Владимирович, Кокоулин, Ростислав Павлович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

© 2020 IOP Publishing Ltd and Sissa Medialab.The TAIGA astroparticle observatory is under development at Tunka valley close to the Baikal Lake. This simulation study is concentrated on the ultrahigh energy extensive air showers (EAS) induced by gamma-quanta or proton in the range from 1 PeV to 10 PeV and zenith angle ranging 0°-45°. For this work, a set of air showers was created by CORSIKA software package. The list of useful secondary particles at the ground level is produced using the COAST library package. The interaction of secondary particles with the soil and detectors was simulated with GEANT4 package. The method based on neural network has been developed for the separation of EAS induced by gamma-quanta or proton. The air showers having energy ranging 1-10 PeV show more than 90% of identification efficiency of protons while keeping identification efficiency of gamma around 50% or more.

2025, Postnikov, E. B., Astapov, I. I., Kindin, V. V., Kiryukhin,S. N., Kompaniets, K. G., Petrukhin, A. A., Yashin, I. I., Астапов, Иван Иванович, Киндин, Виктор Владимирович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

1999, Айнутдинов, В. М., Вонсовский, Н. Н., Киндин, В. В., Компаниец, К. Г., Петрухин, А. А., Родин, Ю. Н., Роом, Д. А., Шутенко, В. В., Шутенко, Виктор Викторович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Киндин, Виктор Владимирович

2025, Sveshnikova, L. G., Astapov, I. I., Kindin, V. V., Kokoulin, R. P., Kompaniets, K. G., Petrukhin, A. A., Yashin, I. I., Астапов, Иван Иванович, Киндин, Виктор Владимирович, Кокоулин, Ростислав Павлович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

2020, Mannocchi, G., Saavedra, O., Trinchero, G., Kokoulin, R. P., Barbashina, N. S., Bogdanov, A. G., Khokhlov, S. S., Khomyakov, V. A., Kindin, V. V., Kompaniets, K. G., Petrukhin, A. A., Shutenko, V. V., Yashin, I. I., Yurina, E. A., Кокоулин, Ростислав Павлович, Барбашина, Наталья Сергеевна, Богданов, Алексей Георгиевич, Хохлов, Семен Сергеевич, Киндин, Виктор Владимирович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Шутенко, Виктор Викторович, Яшин, Игорь Иванович, Юрина, Екатерина Александровна

© 2018 Elsevier B.V. An experiment on the measurements of the Cherenkov light yield from inclined cosmic ray muon bundles in water is being conducted at the Experimental complex NEVOD (MEPhI). The total number of Cherenkov photons is nearly proportional to the muon energy deposit (including secondary particles produced by muons and cascades from them) within the detector volume. Since at muon energies above a hundred GeV the energy loss is almost linearly related to the energy of muons, the average energy loss of the bundles carries information about the mean muon energy in such events. The complex includes the Cherenkov water calorimeter NEVOD with a volume of 2000 m3 and the coordinate-tracking detector DECOR with a total area of 70 m2. DECOR data are used to determine the local muon densities in the bundle events and their arrival directions, while the energy deposits are evaluated from the Cherenkov calorimeter response. The detection of the bundles in a wide range of muon multiplicities and zenith angles gives the opportunity to explore the energy range of primary cosmic ray particles from about 10 PeV to 1000 PeV and even higher in frame of a single experiment. Experimental results on the dependence of the muon bundle energy deposit on the zenith angle and the local muon density are presented and compared with expectations based on simulation of the EAS muon component by means of the CORSIKA code.

2019, Zhurov, D., Gress, O., Sidorov, D., Bezyazeekov, P., Astapov, I., Kindin, V., Kokoulin, R., Kompaniets, K., Petrukhin, A., Yashin, I., Астапов, Иван Иванович, Киндин, Виктор Владимирович, Кокоулин, Ростислав Павлович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

© Published under licence by IOP Publishing Ltd. In TAIGA Observatory (Tunka Advanced Instrument for cosmic ray physics and Gamma-ray Astronomy) we are commissioning the first Imaging Atmospheric Cherenkov Telescope (IACT). The telescope has an alt-azimuth mount and 17-bit shaft encoder for each axis, stepper motors are used for axis control. For the pointing calibration of the telescope a CCD-camera is installed on the dish of the telescope and its position allows to capture simultaneously both the Cherenkov camera with LEDs and the sky with observed source. Since October 2017, the telescope has been operating in tracking mode. In this work the TAIGAIACT telescope pointing calibration approach and first results of the tracking operations are described.

2023, Volchugov, P. A., Astapov, I. I., Kindin, V. V., Kokoulin, R. P., Kompaniets, K. G., Pan, A., Petrukhin, A. A., Satyshev, I., Yashin, I. I., Астапов, Иван Иванович, Киндин, Виктор Владимирович, Кокоулин, Ростислав Павлович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

2025, Samoliga, V., Astapov, I., Kindin, V., Kompaniets, K., Petrukhin, A., Yashin, I., Астапов, Иван Иванович, Киндин, Виктор Владимирович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

2022, Ivanova, A. L., Monkhoev, R., Bezyazeekov, P., Blank, M., Astapov, I., Kindin, V., Kokoulin, R., Kompaniets, K., Korosteleva, E., Kozhin, V., Petrukhin, A., Yashin, I., Астапов, Иван Иванович, Киндин, Виктор Владимирович, Кокоулин, Ростислав Павлович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

© 2022 Institute of Physics Publishing. All rights reserved.Objectives of the TAIGA Astrophysical complex include the study of the flux of charged cosmic rays and diffuse gamma rays with energies above 100 TeV. This complex is located in the Tunka Valley about 50 km from Lake Baikal at the site of the Tunka-133 Cherenkov facility. TAIGA includes the TAIGA-HiSCORE wide-angle Cherenkov array, the network of Imaging Atmospheric Cherenkov Telescopes (TAIGA-IACT), the Tunka-Grande and TAIGA-Muon scintillation arrays. In this work, we present the results of an analysis of the joint events of the Tunka-Grande scintillation array and TAIGA-HiSCORE and Tunka-133 Cherenkov facilities. The results verify sufficient accuracy of the scintillation experiment for the hybrid study of mass composition of cosmic rays and gamma-hadron separation.