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1. TAIGA - An advanced hybrid detector complex for astroparticle physics and high energy gamma-ray astronomy

Author

N. M. Budnev, I. Astapov, P. Bezyazeekov, E. Bonvech, A. Borodin, A. Bulan, D. Chernov, A. Chiavassa, A. Dyachok, A. Gafarov, A. Garmash, V. Grebenyuk, E. Gress, O. Gress, T. Gress, A. Grinyuk, O. Grishin, A. D. Ivanova, A. L. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, Y. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, S. Malakhov, R. Mirgazov, R. Monkhoev, E. Osipova, A. Pakhorukov, L. Pankov, A. Pan, A. Panov, A. Petrukhin, I. Poddubnyi, D. Podgrudkov, V. Ponomareva, E. Popova, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, A. Razumov, G. Rubtsov, E. Ryabov, V. Samoliga, A. Satyshev, A. Silaev, A. Silaev, A. Sidorenkov, A. Skurikhin, A. Sokolov, L. Sveshnikova, V. Tabolenko, L. Tkachev, A. Tanaev, M. Ternovoy, R. Togoo, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, D. Voronin, A. Zagorodnikov, D. Zhurov, I. Yashin

Subjects
Physics, QC1-999
Abstract

The physical motivations, present status, main results in study of cosmic rays and in the field of gamma-ray astronomy as well future plans of the TAIGA-1 (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) project are presented. The TAIGA observatory addresses ground-based gamma-ray astronomy and astroparticle physics at energies from a few TeV to several PeV, as well as cosmic ray physics from 100 TeV to several EeV. The pilot TAIGA-1 complex is located in the Tunka valley, 50 km west from the southern tip of the lake Baikal.

Published
2023
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2. Primary cosmic ray energy spectrum and mean mass composition using data from the TAIGA astrophysical complex

Author

V. Prosin, I. Astapov, P. Bezyazeekov, E. Bonvech, A. Borodin, A. Bulan, A. Chiavassa, D. Chernov, A. Dyachok, A. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, E. Gress, T. Gress, A. Grinyuk, O. Grishin, A. D. Ivanova, A. L. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, Y. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, S. Malakhov, R. Mirgazov, R. Monkhoev, E. Okuneva, E. Osipova, A. Pakhorukov, A. Pan, L. Panasenko, L. Pankov, A. D. Panov, A. Petrukhin, I. Poddubny, D. Podgrudkov, V. Poleschuk, V. Ponomareva, E. Popova, E. Postnikov, V. Ptuskin, A. Pushnin, R. Raikin, A. Razumov, G. Rubtsov, E. Ryabov, Y. Sagan, V. Samoliga, A. Silaev, A. Silaev, A. Sidorenkov, A. Skurikhin, A. Sokolov, L. Sveshnikova, V. Tabolenko, A. Tanaev, B. Tarashchansky, M. Y. Ternovoy, L. Tkachev, R. Togoo, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, D. Voronin, A. Zagorodnikov, A. Zhaglova, D. Zhurov, I. Yashin

Subjects
Physics, QC1-999
Abstract

The corrected dependence of the mean depth of the EAS maximum $X_{max}$ on the energy was obtained from the data of the Tunka-133 array for 7 years and the TAIGA-HiSCORE array for 2 years. The parameter $\langle\ln A\rangle$, characterizing the mean mass compositon was derived from these results. The differential energy spectrum of primary cosmic rays in the energy range of $2\cdot 10^{14}$ – $2\cdot 10^{16}$ eV was reconstructed using the new parameter $Q_{100}$ the Cherenkov light flux at the core distance 100 m. Change of the parameter for the energy reconstuction for the TAIGA-HiSCORE from $Q_{200}$ to $Q_{100}$ provides a decreasing energy threshold for the spectrum to about 200 TeV.

Published
2023
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3. The Tunka-Grande scintillation array: Current results

Author

A. L. Ivanova, I. Astapov, P. Bezyazeekov, E. Bonvech, A. Borodin, N. Budnev, A. Bulan, D. Chernov, A. Chiavassa, A. Dyachok, A. Gafarov, A. Garmash, V. Grebenyuk, E. Gress, O. Gress, T. Gress, A. Grinyuk, O. Grishin, A. D. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, Y. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, S. Malakhov, R. Mirgazov, R. Monkhoev, E. Osipova, A. Pakhorukov, L. Pankov, A. Pan, A. Panov, A. Petrukhin, I. Poddubnyi, D. Podgrudkov, V. Poleschuk, V. Ponomareva, E. Popova, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, A. Razumov, G. Rubtsov, E. Ryabov, Y. Sagan, V. Samoliga, A. Satyshev, A. Silaev, A. Silaev, A. Sidorenkov, A. Skurikhin, A. Sokolov, L. Sveshnikova, V. Tabolenko, L. Tkachev, A. Tanaev, M. Ternovoy, R. Togoo, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, D. Voronin, A. Zagorodnikov, D. Zhurov, I. Yashin

Subjects
Physics, QC1-999
Abstract

The Tunka-Grande experiment is a scintillation array with about 0.5 km$^2$ sensitive area at Tunka Valley, Siberia, for measuring charged particles and muons in extensive air showers (EASs). Tunka-Grande is optimized for cosmic ray studies in the energy range 10 PeV to about 1 EeV, where exploring the composition is of fundamental importance for understanding the transition from galactic to extragalactic origin of cosmic rays. This paper attempts to provide a synopsis of the current results of the experiment. In particular, the reconstruction of the all-particle energy spectrum in the range of 10 PeV to 1 EeV based on experimental data from four observation seasons is presented.

Published
2023
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4. Energy Spectrum and Mass Composition of Cosmic Rays from the Data of the Astrophysical Complex TAIGA

Author

V. Prosin, I. Astapov, P. Bezyazeekov, A. Borodin, M. Brückner, N. Budnev, A. Bulan, A. Chiavassa, A. Dyachok, A. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, T. Gress, A. Grinyuk, O. Grishin, D. Horns, A. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, Yu. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, A. Pan, L. Pankov, V. Poleschuk, M. Popesku, E. Popova, A. Porelli, E. Postnikov, V. Ptuskin, A. Petrukhin, A. Pushnin, R. Raikin, E. Rjabov, G. Rubtsov, Y. Sagan, V. Samoliga, A. Sidorenkov, A. Silaev, A. Skurikhin, M. Slunecka, A. Sokolov, L. Sveshnikova, Y. Suvorkin, V. Tabolenko, A. Tanaev, B. Tarashansky, M. Ternovoy, L. Tkachev, M. Tluczykont, N. Ushakov, A. Vaidyanathan, P. Volchugov, D. Voronin, R. Wischnewski, I. Yashin, A. Zagorodnikov, and D. Zhurov

Subjects
Nuclear and High Energy Physics, Atomic and Molecular Physics, and Optics
Published
2021

5. INSTITUTIONAL SUSTAINABILITY IN RUSSIAN PROFESSIONAL SPORTS

Author

V. A. Chigrin, М. А. Samofalova, and V. V. Kozhin

Subjects
Political science, Sustainability, Public administration
Abstract

This article examines how the target interests of the subjects of the sub-Institute of professional sports affect its institutional stability. We put forward a private hypothesis, according to which there is no consistency of ideas about what rules should regulate professional sports, what should be its content, what model is necessary for its successful development. As a result, there is a lack of institutional stability, which contains prerequisites for the erosion of existing institutional restrictions. This has a negative impact on all aspects of the functioning of professional sports: the preparation of the reserve, the economic component, but, first of all, sports results. The lack of coherence hinders its further institutionalization, which is manifested in the lack of formal and informal norms necessary for development. We see the solution to this problem in a clear conceptualization of the model of professional sports, which would not contain the main defect of its modern stage of transformation in the form of contradictory trends that mutually exclude the ability to meet the interests of its main subjects. The main goal is to reveal the depth of normative and target contradictions between various factors of professional sports. This is important in order to identify potential threats of the collapse of the social Institute of sports due to targeted disagreements in the sub – Institute of professional sports.

Published
2020

6. TAIGA—A hybrid array for high energy gamma-ray astronomy and cosmic-ray physics

Author

N. Budnev, I. Astapov, P. Bezyazeekov, E. Bonvech, A. Borodin, A. Bulan, A. Chiavassa, D. Chernov, A. Dyachok, A. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, E. Gress, T. Gress, A. Grinyuk, O. Grishin, A.D. Ivanova, A.L. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Komponiets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, Y. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, S. Malakhov, R. Mirgazov, R. Monkhoev, E. Okuneva, E. Osipova, A. Pakhorukov, A. Pan, L. Panasenko, L. Pankov, A.D. Panov, A. Petrukhin, I. Poddubny, D. Podgrudkov, V. Poleschuk, V. Ponomareva, E. Popova, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, A. Razumov, G. Rubtsov, E. Ryabov, Y. Sagan, V. Samoliga, A. Silaev, A. Sidorenkov, A. Skurikhin, A. Sokolov, L. Sveshnikova, V. Tabolenko, A. Tanaev, B. Tarashchansky, M.Y. Ternovoy, L. Tkachev, R. Togoo, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, D. Voronin, A. Zagorodnikov, A. Zhaglova, D. Zhurov, and I. Yashin

Subjects
ImagingTAIGA-IACTarray, Nuclear and High Energy Physics, Cosmicray, TimingTAIGA-HiSCOREarray, Gammaastronomy, Instrumentation
Published
2022

7. Optimisation studies of the TAIGA-Muon scintillation detector array

Author

I. Astapov, P. Bezyazeekov, M. Blank, E. Bonvech, A. Borodin, M. Brueckner, N. Budnev, A. Bulan, D. Chernov, A. Chiavassa, A. Dyachok, A. Gafarov, A. Garmash, V. Grebenyuk, E. Gress, O. Gress, T. Gress, A. Grinyuk, O. Grishin, D. Horns, A. Igoshin, A.D. Ivanova, A.L. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, Y. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, S. Malakhov, R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, A. Pan, L. Pankov, L. Panov, A. Petrukhin, I. Poddubnyi, D. Podgrudkov, V. Poleschuk, V. Ponomareva, M. Popesku, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, G. Rubtsov, E. Ryabov, Y. Sagan, V. Samoliga, I. Satyshev, A. Silaev, A. Silaev(junior), A. Sidorenkov, S. Sinegovsky, A. Skurikhin, A. Sokolov, V. Sulakov, L. Sveshnikova, V. Tabolenko, A. Tanaev, B. Tarashchansky, M. Ternovoy, L. Tkachev, M. Tluczykont, R. Togoo, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, D. Voronin, R. Wischnewski, A. Zagorodnikov, A. Zhaglova, D. Zhurov, and I. Yashin

Subjects
Instrumentation, Mathematical Physics
Abstract

The TAIGA astroparticle observatory is progressing with the deployment of new detector stations. The Tunka-Grande — scintillation counter array of the observatory expands with the new TAIGA-Muon stations. Several simulation studies were conducted for optimisation of the new station positioning and performance. Extensive air showers induced by gamma quanta or a proton in the range from 100 TeV to 1 PeV at a zenith angle of 0° were used for these studies. Based on the developed simulation, the capabilities of identification of high energy extensive air showers were studied. The soil thickness, the detector and station positions, the lowest measurable energy range of the cosmic rays, and different methods of air shower identification were investigated.

Published
2022

8. Identification of electromagnetic and hadronic EASs using neural network for TAIGA scintillation detector array

Author

I. Astapov, P. Bezyazeekov, M. Blank, E. Bonvech, A. Borodin, M. Brueckner, N. Budnev, A. Bulan, D. Chernov, A. Chiavassa, A. Dyachok, A. Gafarov, A. Garmash, V. Grebenyuk, E. Gress, O. Gress, T. Gress, A. Grinyuk, O. Grishin, D. Horns, A. Igoshin, M. Ilyushin, A.D. Ivanova, A.L. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, A. Kuotb, L. Kuzmichev, A. Lagutin, M. Lavrova, Y. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, S. Malakhov, R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, A. Pan, L. Pankov, L. Panov, A. Petrukhin, I. Poddubnyi, D. Podgrudkov, V. Poleschuk, V. Ponomareva, M. Popesku, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, G. Rubtsov, E. Ryabov, Y. Sagan, V. Samoliga, I. Satyshev, A. Silaev, A. Silaev(junior), A. Sidorenkov, S. Sinegovsky, A. Skurikhin, A. Sokolov, V. Sulakov, L. Sveshnikova, V. Tabolenko, A. Tanaev, B. Tarashchansky, M. Ternovoy, L. Tkachev, M. Tluczykont, R. Togoo, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, V. Vorobyov, D. Voronin, R. Wischnewski, A. Zagorodnikov, A. Zhaglova, D. Zhurov, and I. Yashin

Subjects
Instrumentation, Mathematical Physics
Abstract

The TAIGA experiment in Tunka valley is expanding the present scintillation detector array with new TAIGA-Muon detector stations. A simulation model was developed for optimization of the layout of the new stations and study of the identification performance of the array. The extensive air showers (EASs) were simulated with the CORSIKA simulation tool, and the detector response was simulated with the GEANT4 package. EASs induced by gamma quanta or protons in the energy range from 1 PeV to 10 PeV and the zenith angle range from 0° to 45°, are used for these studies. For the identification of high energy extensive air showers, a method based on a neural network was suggested. With this method, the proton identification efficiency is more than 90%, while the gamma identification efficiency not less than 50%.

Published
2022

9. Tunka-Grande scintillation array: resent results

Author

A L Ivanova, R Monkhoev, I Astapov, P Bezyazeekov, M Blank, E Bonvech, A Borodin, M Brückner, N Budnev, A Bulan, D Chernov, A Chiavassa, A Dyachok, A Gafarov, A Garmash, V Grebenyuk, E Gress, O Gress, T Gress, A Grinyuk, O Grishin, D Horns, A D Ivanova, N Kalmykov, V Kindin, S Kiryuhin, R Kokoulin, K Kompaniets, E Korosteleva, V Kozhin, E Kravchenko, A Kryukov, L Kuzmichev, A Lagutin, M Lavrova, Y Lemeshev, B Lubsandorzhiev, N Lubsandorzhiev, A Lukanov, D Lukyantsev, S Malakhov, R Mirgazov, R Mirzoyan, E Osipova, A Pakhorukov, L Pankov, A Pan, A Panov, A Petrukhin, I Poddubnyi, D Podgrudkov, V Poleschuk, V Ponomareva, E Popova, A Porelli, E Postnikov, V Prosin, V Ptuskin, A Pushnin, R Raikin, A Razumov, G Rubtsov, E Ryabov, Y Sagan, V Samoliga, A Satyshev, A Silaev, A Sidorenkov, S Sinegovsky, A Skurikhin, A Sokolov, V Sulakov, L Sveshnikova, V Tabolenko, B Tarashchansky, L Tkachev, M Tluczykont, A Tanaev, M Ternovoy, R Togoo, N Ushakov, A Vaidyanathan, P Volchugov, N Volkov, D Voronin, R Wischnewski, A Zagorodnikov, A Zhaglova, D Zhurov, and I Yashin

Subjects
History, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Computer Science Applications, Education
Abstract

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.

Published
2021

10. Geant4 simulation of the Tunka-Grande experiment

Author

R Monkhoev, M Ternovoy, I Astapov, P Bezyazeekov, A Borodin, M Brueckner, N Budnev, A Chiavassa, A Dyachok, A Gafarov, A Garmash, V Grebenyuk, O Gress, T Gress, A Grinyuk, O Grishin, D Horns, A Igoshin, A Ivanova, Al Ivanova, N Kalmykov, V Kindin, S Kiryuhin, R Kokoulin, K Kompaniets, E Korosteleva, V Kozhin, E Kravchenko, A Kryukov, L Kuzmichev, A Lagutin, Y Lemeshev, B Lubsandorzhiev, N Lubsandorzhiev, D Lukyantsev, S Malakhov, R Mirgazov, R Mirzoyan, E Osipova, A Pakhorukov, L Pankov, A Petrukhin, I Poddubnyi, V Poleschuk, V Ponomareva, M Popesku, E Popova, A Porelli, E Postnikov, V Prosin, V Ptuskin, A Pushnin, R Raikin, G Rubtsov, E Ryabov, Y Sagan, V Samoliga, B Sabirov, A Silaev, A Sidorenkov, S Sinegovsky, A Skurikhin, V Slunecka, A Sokolov, Y Suvorkin, L Sveshnikova, V Tabolenko, B Tarashchansky, L Tkachev, M Tluczykont, A Tanaev, R Togoo, N Ushakov, A Vaidyanathan, P Volchugov, D Voronin, R Wischnewski, A Zagorodnikov, A Zhaglova, D Zhurov, and I Yashin

Subjects
History, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Computer Science Applications, Education
Abstract

The Tunka-Grande array is part of a single experimental complex, which also includes the Tunka-133 and TAIGA-HiScORE (High Sensitivity COsmic Rays and gamma Explorer) wide-angle Cherenkov arrays, TAIGA-IACT array (Imaging Atmospheric Cherenkov Telescope) and TAGA-MUON scintillation array. This complex is located in the Tunka Valley (Buryatia Republic, Russia), 50 km from Lake Baikal. It is designed to study the energy spectrum and the mass composition of charged cosmic rays in the energy range 100 TeV - 1000 PeV, to search for diffuse gamma rays above 100 TeV and to study local sources of gamma rays with energies above 30 TeV. This report outlines 3 key points. The first is the description of the Tunka-Grande scintillation array. The second one presents the computer simulation strategy of the Tunka Grande array based on the Geant4 software. The third one is devoted to the prospects for future research in the field of cosmic ray physics and gamma-ray astronomy using simulation results.

Published
2021

11. The hybrid installation TAIGA: design, status and preliminary results

Author

Nima Lubsandorzhiev, I. Astapov, Pavel Bezyazeekov, A. Borodin, M. Brueckner, N. M. Budnev, V. Chernykh, A. Chiavassa, A. N. Dyachok, O. Fedorov, A. R. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, T. I. Gress, A. Grinyuk, O. Grishin, Dieter Horns, A. Igoshin, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, P. Kirilenko, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, Alexander Kryukov, L. Kuzmichev, A. Lagutin, Y. Lemeshev, V. Lenok, B. Lubsandorzhiev, R. R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, A. Pan, M. I. Panasyuk, L. Pankov, A. Petrukhin, V. Poleschuk, M. Popesku, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, G. Rubtsov, E. V. Ryabov, Y. Sagan, V. Samoliga, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, A. V. Skurikhin, V. Slunecka, A. Sokolov, Y. Suvorkin, L. Sveshnikova, V. A. Tabolenko, B. Tarashchansky, L. Tkachev, M. Tluczykont, A. Tonaev, N. Ushakov, P. Volchugov, D. Voronin, R. Wischnewski, A. Zagorodnikov, D. Zhurov, and I. Yashin

Published
2019

12. Simulation of the Tunka-Grande, TAIGA-Muon and TAIGA-HiSCORE arrays for a search of astrophysical gamma quanta with energy above 100 TeV

Author

M Ternovoy, I Kotovschikov, N Budnev, A Chiavassa, A Dyachok, A Gafarov, A Garmash, V Grebenyuk, O Gress, T Gress, O Grishin, A Grinyuk, D Horns, A Ivanova, N Kalmykov, V Kindin, S Kiryuhin, R Kokoulin, K Kompaniets, E Korosteleva, V Kozhin, E Kravchenko, A Krykov, L Kuzmichev, A Lagutin, Y Lemeshev, B Lubsandorzhiev, N Lubsandorzhiev, R Mirgazov, R Mirzoyan, R Monkhoev, E Osipova, A Pakhorukov, A Pan, M Panasyuk, L Pankov, A Petrukhin, V Poleschuk, E Popova, A Porelli, E Postnikov, V Prosin, V Ptuskin, A Pushnin, R Raikin, G Rubtsov, E Rybov, Y Sagan, V Samoliga, A Silaev, A Silaev Jr, A Sidorenkov, A Skurikhin, C Slunecka, A Sokolov, Y Suvorkin, L Sveshnikova, V Tabolenko, A Tanaev, B Tarashansky, L Tkachev, M Tluczykont, R Togoo, N Ushakov, A Vaidyanathan, P Volchugov, D Voronin, R Wischnevski, A Zagorodnikov, D Zhurov, and I Yashin

Subjects
History, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Computer Science Applications, Education
Abstract

In the paper we present our simulation strategy of the Tunka-Grande, TAIGA-Muon, and TAIGA-HiSCORE arrays in the light of the problem of separation astrophysical high-energy gamma rays from the cosmic ray background. The paper contains a description of our simulation method, based on Geant4 and CORSIKA codes. We also present the prospect of future research with TAIGA (Tunka Advanced Instrument for cosmic rays and Gamma Astronomy) with using the simulation results.

Published
2021

13. Possibilities of the Tunka-Grande and TAIGA-Muon scintillation arrays with the TAIGA-HiSCORE Cherenkov array joint operation in the research of cosmic and gamma rays

Author

A Ivanova, N Budnev, A Chiavassa, A Dyachok, A Gafarov, A Garmash, V Grebenyuk, O Gress, T Gress, O Grishin, A Grinyuk, D Horns, N Kalmykov, V Kindin, S Kiryuhin, R Kokoulin, K Kompaniets, E Korosteleva, I Kotovschikov, V Kozhin, E Kravchenko, A Krykov, L Kuzmichev, A Lagutin, Y Lemeshev, B Lubsandorzhiev, N Lubsandorzhiev, R Mirgazov, R Mirzoyan, R Monkhoev, E Osipova, A Pakhorukov, A Pan, M Panasyuk, L Pankov, A Petrukhin, V Poleschuk, E Popova, A Porelli, E Postnikov, V Prosin, V Ptuskin, A Pushnin, R Raikin, G Rubtsov, E Rybov, Y Sagan, V Samoliga, A Silaev, A Sidorenkov, A Skurikhin, C Slunecka, A Sokolov, Y Suvorkin, L Sveshnikova, V Tabolenko, A Tanaev, B Tarashansky, M Ternovoy, L Tkachev, M Tluczykont, R Togoo, N Ushakov, A Vaidyanathan, P Volchugov, D Voronin, R Wischnevski, A Zagorodnikov, D Zhurov, and I Yashin

Subjects
Physics, History, Scintillation, Muon, COSMIC cancer database, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Taiga, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Astronomy, Computer Science Applications, Education, Joint (geology), Cherenkov radiation
Abstract

The Tunka-Grande scintillation array is part of the TAIGA Gamma Observatory. It is intended for investigation of energy spectrum and mass composition of primary cosmic rays in the energy range 10 PeV–10 EeV and the search for diffuse cosmic gamma rays. The TAIGA-HiSCORE Cherenkov array aims at observing gamma-rays with the energy from 1 TeV. TAIGA-Muon low-threshold scintillation detector array is a network of surface and underground detectors for registration charge particles of EAS. Currently, 3 clusters have been deployed. The first cluster is running in test mode. It is planed that in the future the total area of the TAIGA-Muon will be about 2000 sq. m. and it will search astrophysical gamma-rays in the energy range from 100 TeV together with the Tunka-Grande scintillation array and the Cherenkov experiments of the TAIGA Gamma Observatory. To evaluate the possibility of join operation Tunka-Grande, TAIGA-Muon and TAIGA-HiSCORE, a simulation was performed using the CORSIKA and Geant4 software packages. The status of model-based studies is presented and assessed the prospects for joint operation of the arrays.

Published
2020

14. TAIGA—an advanced hybrid detector complex for astroparticle physics and high energy gamma-ray astronomy in the Tunka valley

Author

N. Budnev, I. Astapov, P. Bezyazeekov, E. Bonvech, V. Boreyko, A. Borodin, M. Brückner, A. Bulan, D. Chernov, D. Chernykh, A. Chiavassa, A. Dyachok, O. Fedorov, A. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, T. Gress, A. Grinyuk, O. Grishin, D. Horns, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, D. Kostunin, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, L. Kuzmichev, A. Lagutin, Yu. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, A. Pan, M. Panasyuk, L. Pankov, D. Podgrudkov, V. Poleschuk, M. Popesku, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, A. Petrukhin, A. Pushnin, R. Raikin, E. Rjabov, G. Rubtsov, Y. Sagan, V. Samoliga, A. Sidorenkov, A. Silaev, A. Silaev (junior), A. Skurikhin, M. Slunecka, A. Sokolov, L. Sveshnikova, Y. Suvorkin, V. Tabolenko, A. Tanaev, B. Tarashansky, L. M.Ternovoy, A. Tkachenko, L. Tkachev, M. Tluczykont, N. Ushakov, A. Vaidyanathan, P. Volchugov, D. Voronin, R. Wischnewski, I. Yashin, A. Zagorodnikov, and D. Zhurov

Subjects
Astroparticle physics, Physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Physics beyond the Standard Model, High Energy Physics::Phenomenology, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cosmic ray, Elementary particle, Gamma-ray astronomy, 01 natural sciences, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Observatory, 0103 physical sciences, Instrumentation, Axion, Mathematical Physics
Abstract

The TAIGA observatory addresses ground-based gamma-ray astronomy at energies from a few TeV to several PeV, cosmic ray physics from 100 TeV to several EeV as well as for search for axion-like particles, Lorentz violations and another evidence of New Physics. In 2020 year a one square kilometer TAIGA setup should be put in operation.

Published
2020

15. Design features and data acquisition system of the TAIGA-Muon scintillation array

Author

A. Ivanova, N. Budnev, A. Chiavassa, A. Dyachok, O. Fedorov, A. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, T. Gress, O. Grishin, A. Grinyuk, D. Horns, N. Kalmykov, Y.A. Kazarina, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Krykov, L. Kuzmichev, A. Lagutin, Y. Lemeshev, V. Lenok, B. Lubsandorzhiev, N. Lubsandorzhiev, R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, A. Pan, M. Panasyuk, L. Pankov, A. Petrukhin, V. Poleschuk, M. Popescu, E. Popova, A. Porelly, E. Postnikov, V.V. Prosin, V.S. Ptuskin, A.A. Pushnin, R. Raikin, G. Rubtsov, E. Rybov, Y. Sagan, V. Samoliga, A. Silaev, A. Silaev Jr., A. Sidorenkov, A. Skurikhin, C. Slunecka, A. Sokolov, C. Spiering, Y. Suvorkin, L. Sveshnikova, V. Tabolenko, A. Tanaev, B. Tarashansky, M. Ternovoy, L. Tkachev, M. Tluczykont, N. Ushakov, A. Vaidyanathan, P. Volchugov, D. Voronin, R. Wischnevski, A. Zagorodnikov, D. Zhurov, and I. Yashin

Subjects
spectrometer [muon], data acquisition, 01 natural sciences, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Data acquisition, 0103 physical sciences, ddc:610, spectrometer: design, Instrumentation, activity report, scintillation counter, Mathematical Physics, Remote sensing, Data processing, Scintillation, Muon, 010308 nuclear & particles physics, Taiga, design [spectrometer], design [electronics], electronics: readout, control system, readout [electronics], Geology, muon: spectrometer, electronics: design
Abstract

International Conference on Instrumentation for Colliding Beam Physics, INSTR20, Novosibirsk, Russia, 24 Feb 2020 - 28 Feb 2020; Journal of Instrumentation 15(06), C06057 (2020). doi:10.1088/1748-0221/15/06/C06057, The TAIGA-Muon scintillation array is located in the Tunka Valley. It is a part of the single TAIGA experimental complex. Its construction has started in the summer of 2019. By the autumn of 2019, the first three clusters were installed. We describe the design of the TAIGA-Muon array, the data acquisition (DAQ) sistem, reading and control systems., Published by Inst. of Physics, London

Published
2020

16. TAIGA - a hybrid array for high energy gamma astronomy and cosmic ray physics

Author

N. Budnev, I. Astapov, P. Bezyazeekov, V. Boreyko, A. Borodin, M. Brueckner, A. Chiavassa, A. Dyachok, O. Fedorov, A. Gafarov, A. Garmash, N. Gorbunov, V. Grebenyuk, O. Gress, T. Gress, O. Grishin, A. Grinyuk, A. Haungs, R. Hiller, D. Horns, T. Huege, N. Kalmykov, Y. Kazarina, V. Kindin, S. Kiryuhin, P. Kirilenko, M. Kleifges, R. Kokoulin, K. Kompaniets, E. Korosteleva, D. Kostunin, V. Kozhin, E. Kravchenko, L. Kuzmichev, Yu. Lemeshev, V. Lenok, B. Lubsandorzhiev, N. Lubsandorzhiev, R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, M. Panasyuk, L. Pankov, A. Petrukhin, V. Poleschuk, M. Popescu, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, E. Rjabov, G. Rubtsov, A. Pushnin, Y. Sagan, B. Sabirov, V. Samoliga, F. Schröder, Yu. Semeney, A. Silaev, A. Sidorenkov, A. Skurikhin, V. Slunecka, A. Sokolov, C. Spiering, L. Sveshnikova, V. Tabolenko, B. Tarashansky, A. Tkachenko, L. Tkachev, M. Tluczykont, R. Wischnewski, A. Zagorodnikov, D. Zhurov, V. Zurbanov, and I. Yashin

Subjects
Physics, Range (particle radiation), High energy, 010308 nuclear & particles physics, QC1-999, Taiga, Detector, Gamma ray, Astronomy, Cosmic ray, 01 natural sciences, Galaxy, Hybrid array, 0103 physical sciences, ddc:530, 010303 astronomy & astrophysics
Abstract

The physics motivations and advantages of the new TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) detector are presented. TAIGA aims at gamma-ray astronomy at energies from a few TeV to several PeV, as well as cosmic ray physics from 100 TeV to several EeV. For the energy range 30 – 200 TeV the sensitivity of 10 km2 area TAIGA array for the detection of local sources is expected to be 5 × 10-14 erg cm-2 sec-1 for 300 h of observations. Reconstruction of the given EAS energy, incoming direction and its core position, based on the timing TAIGA-HiSCORE data, allows one to increase a distance between the IACTs up to 600-1000 m. The low investments together with the high sensitivity for energies ≥ 30-50 TeV make this pioneering technique very attractive for exploring the galactic PeVatrons and cosmic rays. At present the TAIGA first stage has been constructed in Tunka valley, 50 km West from the Lake Baikal. The first experimental results of the TAIGA first stage are presented.

Published
2018

17. Software design for the TAIGA-IACT telescope pointing and control system

Author

Dmitriy Zhurov, Oleg A Gress, I. Astapov, Pavel Bezyazeekov, V. Boreyko, A. Borodin, M. Brueckner, N. M. Budnev, A. Chiavassa, Aleksei Nikolaevich Dyachok, O. Fedorov, Aleksandr Gafarov, A. Garmash, N. Gorbunov, Victor Grebenyuk, T. I. Gress, O. Grishin, A. Grinyuk, Dieter Horns, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, P. Kirilenko, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, M. Kunnas, L. Kuzmichev, Yu. Lemeshev, V. Lenok, B. Lubsandorzhiev, N. Lubsandorzhiev, Rashid Mirgazov, Razmik Mirzoyan, R. Monkhoev, R. Nachtigall, E. Osipova, A. Pakhorukov, M. I. Panasyuk, Leonid Pankov, A. Petrukhin, V. Poleschuk, E. Popescu, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, Evgenii V Rjabov, G. Rubtsov, A. Pushnin, Yaroslav Sagan, B. Sabirov, V. Samoliga, Yu. Semeney, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, Aleksandr Vasilevich Skurihin, V. Slunecka, A. V. Sokolov, C. Spiering, L. Sveshnikova, V. A. Tabolenko, B. Tarashansky, A. Tkachenko, L. Tkachev, M. Tluczykont, R. Wischnewski, Aleksey Zagorodnikov, Valery Zurbanov, and I. Yashin

Subjects
Physics::Instrumentation and Detectors, Computer science, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, IACT, Cosmic ray, Reflector (antenna), law.invention, Telescope, Data acquisition, law, Astrophysics::Solar and Stellar Astrophysics, Stepper, Astrophysics::Galaxy Astrophysics, Cherenkov radiation, Remote sensing
Abstract

In TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma-ray Astronomy) detector we are commissioning the first Imaging Atmospheric Cherenkov Telescope (IACT). The telescope drive system comprises a motor controller and two stepper motors for axis control. For the pointing calibration of the telescope a CCD-camera is installed on the reflector dish of the telescope. The position of the CCD-camera allows us capturing both the Cherenkov camera and the observed source. In this report we describe the telescope positioning and the drive system software as well as the control of the CCD-camera data acquisition, archiving and processing system.

Published
2017

18. TAIGA-HiSCORE detection of the CATS-Lidar on the ISS as fast moving point source

Author

Ralf Wischnewski, A. Porelli, A. Garmash, I. Astapov, Pavel Bezyazeekov, V. Boreyko, A. Borodin, M. Brueckner, N. M. Budnev, A. Chiavassa, Aleksei Nikolaevich Dyachok, O. Fedorov, Aleksandr Gafarov, N. Gorbunov, E.S. Gorbovskoy, Victor Grebenyuk, O. Gress, T. I. Gress, O. Grishin, A. Grinyuk, Dieter Horns, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, P. Kirilenko, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, M. Kunnas, L. Kuzmichev, Yu. Lemeshev, V. Lenok, B. Lubsandorzhiev, V.M. Lipunov, N. Lubsandorzhiev, Rashid Mirgazov, Razmik Mirzoyan, R. Monkhoev, R. Nachtigall, E. Osipova, A. Pakhorukov, M. I. Panasyuk, Leonid Pankov, A. Petrukhin, V. Poleschuk, E. Popescu, E. Popova, E. Postnikov, V. Prosin, V. Ptuskin, Evgenii V Rjabov, G. Rubtsov, A. Pushnin, Yaroslav Sagan, B. Sabirov, V. Samoliga, Yu. Semeney, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, Aleksandr Vasilevich Skurihin, V. Slunecka, A. V. Sokolov, C. Spiering, G. Spengler, L. Sveshnikova, V. A. Tabolenko, B. Tarashansky, A. Tkachenko, L. Tkachev, M. Tluczykont, Aleksey Zagorodnikov, D. Zhurov, Valery Zurbanov, and I. Yashin

Subjects
Robotic telescope, Lidar, Forward scatter, Point source, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Calibration, Gamma ray, Environmental science, Satellite, Physics::Atmospheric and Oceanic Physics, Cherenkov radiation, Remote sensing
Abstract

We report the first ground-based observation of the CATS-LIDAR onboard the ISS by the TAIGA-HiSCORE gamma-ray facility, and the MASTER-Tunka Robotic telescope. HiSCORE detects unscattered laser light directly from the ISS, at up to km-scale distance from the laser beam spot on ground. The ISS-LIDAR turns out to be a unique calibration tool, in particular to verify the absolute astronomical pointing of HiSCORE. We detected the LIDAR for 11 ISS-passages; among these were observations of forward scattering of the laser beam in dense clouds, which might carry information complementary to the LIDAR technique. We expect other air Cherenkov installations like IACTs to benefit from this light source.

Published
2017

19. TAIGA - a hybrid detector complex for high energy gamma-ray astro-physics and cosmic ray physics in the Tunka valley

Author

Nikolai Mikhailovich Budnev, Leonid A Kuzmichev, Razmik Mirzoyan, I. Astapov, Pavel Bezyazeekov, V. Boreyko, A. Borodin, Martin Brueckner, Andrea Chiavassa, Aleksei Nikolaevich Dyachok, Oleg Fedorov, Aleksandr Gafarov, A. Garmash, N. Gorbunov, Victor Grebenyuk, O. Gress, T. I. Gress, O. Grishin, A. Grinyuk, Dieter Horns, A. Ivanova, N. Kalmykov, Y. Kazarina, Victor Kindin, P. Kirilenko, S. Kiryuhin, Rostislav Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, M. Kunnas, Yu. Lemeshev, V. Lenok, Bayarto Lubsandorzhiev, Nima Lubsandorzhiev, Rashid Mirgazov, R. Monkhoev, R. Nachtigall, E. Osipova, A. Pakhorukov, Mikhail Panasyuk, Leonid Pankov, Anatoly Petrukhin, V. Poleschuk, Eugeny Popescu, E. Popova, Andrea Porelli, E. Postnikov, V. Prosin, Vladimir Ptuskin, Evgenii V Rjabov, Grigory Rubtsov, A. Pushnin, Yaroslav Sagan, B. Sabirov, Vladimir Samoliga, Yu. Semeney, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, Aleksandr Vasilevich Skurihin, V. Slunecka, A. Sokolov, Christian Spiering, Lyubov Sveshnikova, V. A. Tabolenko, B. Tarashansky, A. Tkachenko, Leonid Tkachev, Martin Tluczykont, R. Wischnewski, Aleksey Zagorodnikov, D. Zhurov, Valery Zurbanov, and Igor Yashin

Subjects
Physics, Telescope, law, Detector, Gamma ray, Astronomy, Cosmic ray, IACT, Galaxy, Energy (signal processing), Cherenkov radiation, law.invention
Abstract

The physics motivations and characteristics of the new gamma-experiment TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) are presented. The TAIGA experiment addresses ground-based gamma-ray astronomy at energies from a few TeV to several PeV, as well as cosmic ray physics from $100$ TeV to several EeV. For the energy range $30 - 200$ TeV the sensitivity of the planned for future extension of TAIGA up to $5$ km$^2$ area for detection of the local sources is expected to be $10^{-13}$ erg cm$^{-2}$ sec$^{-1}$ for $500$ h of observation. The combination of the wide angle Cherenkov timing detectors of the TAIGA-HiSCORE array and the $4$ m class Imaging Atmospheric Cherenkov Telescopes of the TAIGA-IACT array with their FoV of $10x10$ degrees offers a cost effective-way to construct a $5$ km$^2$ array. Reconstruction of an EAS energy, direction and core position based on the TAIGA-HiSCORE data will allow us to increase the distance between comparatively expensive IACTs up to $800 - 1200$ m. The low investments together with the high sensitivity for energies $\geqslant 30-50$ TeV make this pioneering technique very attractive for exploring the galactic PeVatrons and cosmic rays. In addition to the Cherenkov light detectors we intend to deploy an array of muon detectors (TAIGA-Muon array) over an area of 1 km$^2$ with a total area of about $2000 - 3000$ m$^2$. The TAIGA-IACT-HiSCORE together with the TAIGA-Muon array will be used for selection of gamma-ray induced EAS. At present the first stage of TAIGA have been constructed in the Tunka valley, $\sim 50$ km West from the Lake Baikal in Siberia. Now it consists of 28 TAIGA-HiSCORE Cherenkov stations distributed over an area of $0.25$ km$^2$ and the first IACT of the TAIGA-IACT array. We are planning to test operation of the single telescope in coincidence with the HiSCORE up to shower impact distances of $\sim 500 - 600$ m; for this purpose we already started construction of the second imaging telescope at $300$ m distance from the first one. During 2017 -- 2019 years we intend to increase the number of the TAIGA-HiSCORE stations up to $100 - 120$, spread on the area of $1$ km$^2$ and to deploy $2$ additional IACTs.

Published
2017

20. The wide-aperture gamma-ray telescope TAIGA-HiSCORE in the Tunka Valley: Design, composition and commissioning

Author

O. Gress, I. Astapov, N. Budnev, P. Bezyazeekov, A. Bogdanov, V. Boreyko, M. Brückner, A. Chiavassa, O. Chvalaev, A. Dyachok, T. Gress, S. Epimakhov, E. Fedoseev, A. Gafarov, N. Gorbunov, V. Grebenyuk, A. Grinuk, O. Grishin, D. Horns, A. Ivanova, A. Kalinin, N. Karpov, N. Kalmykov, Yu. Kazarina, N. Kirichkov, S. Kiryuhin, R. Kokoulin, K. Komponiest, E. Korosteleva, V. Kozhin, M. Kunnas, L. Kuzmichev, V. Lenok, B. Lubsandorzhiev, N. Lubsandorzhiev, R. Mirgazov, R. Mirzoyan, R. Monkhoev, R. Nachtigall, A. Pakhorukov, M. Panasyuk, L. Pankov, A. Petrukhin, V. Platonov, V. Poleschuk, E. Popova, A. Porelli, V. Prosin, G. Rubtsov, A. Pushnin, V. Samoliga, A. Saunkin, Yu. Semeney, B. Shaibonov(ju), A. Silaev, A. Silaev(ju), A. Skurikhin, V. Slucka, C. Spiering, L. Sveshnikova, V. Tabolenko, B. Tarashchansky, A. Tkachenko, L. Tkachev, M. Tluczykont, D. Voronin, R. Wischnewski, A. Zagorodnikov, V. Zurbanov, I. Yashin, Shaibonov, B., and Silaev, A.

Subjects
Data acquisition system, Nuclear and High Energy Physics, Cherenkov light, Cherenkov detector, Cosmic ray, 01 natural sciences, Particle detector, law.invention, Optics, law, 0103 physical sciences, ddc:530, 010306 general physics, Instrumentation, Cherenkov radiation, Physics, Gamma-ray sources, 010308 nuclear & particles physics, business.industry, Detector, Gamma ray, Cherenkov Telescope Array, business, Fermi Gamma-ray Space Telescope
Abstract

Nuclear instruments & methods in physics research / A 845, 367 - 372 (2017). doi:10.1016/j.nima.2016.08.031, The new TAIGA-HiSCORE non-imaging Cherenkov array aims to detect air showers induced by gamma rays above 30 TeV and to study cosmic rays above 100 TeV. TAIGA-HiSCORE is made of integrating air Cherenkov detector stations with a wide field of view (0.6 sr), placed at a distance of about 100 m. They cover an area of initially ∼0.25 km$^2$ (prototype array), and of ∼5 km$^2$ at the final phase of the experiment. Each station includes 4 PMTs with 20 or 25 cm diameter, equipped with light guides shaped as Winstone cones. We describe the design, specifications of the read-out, DAQ and control and monitoring systems of the array. The present 28 detector stations of the TAIGA-HiSCORE engineering setup are in operation since September 2015., Published by North-Holland Publ. Co., Amsterdam

Published
2017
Full Text
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21. The TAIGA timing array HiSCORE - first results

Author

M. Tluczykont, N. Budnev, I. Astapov, N. Barbashina, A. Bogdanov, V. Boreyko, M. Brückner, A. Chiavassa, O. Chvalaev, O. Gress, T. Gress, O. Grishin, A. Dyachok, S. Epimakhov, O. Fedorov, A. Gafarov, N. Gorbunov, V. Grebenyuk, A. Grinuk, D. Horns, A. Kalinin, N. Karpov, N. Kalmykov, Y. Kazarina, S. Kiryuhin, R. Kokoulin, K. Kompaniets, A. Konstantinov, E. Korosteleva, V. Kozhin, E. Kravchenko, M. Kunnas, L. Kuzmichev, Yu. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, R. Mirgazov, R. Mirzoyan, R. Monkhoev, R. Nachtigall, E. Osipova, A. Pakhorukov, M. Panasyuk, L. Pankov, A. Petrukhin, V. Poleschuk, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, G. Rubtsov, A. Pushnin, V. Samoliga, P. Satunin, Yu. Semeney, A. Silaev, A. Skurikhin, M. Slunecka, A. Sokolov, C. Spiering, L. Sveshnikova, V. Tabolenko, B. Tarashansky, A. Tkachenko, L. Tkachev, D. Voronin, R. Wischnewski, A. Zagorodnikov, V. Zurbanov, D. Zhurov, and I. Yashin

Subjects
Physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, QC1-999, Detector, Taiga, Gamma ray, Astrophysics::Instrumentation and Methods for Astrophysics, Cosmic ray, Astrophysics, 01 natural sciences, Air shower, Sampling (signal processing), 0103 physical sciences, 010303 astronomy & astrophysics, Cherenkov radiation, Remote sensing
Abstract

Observations of gamma rays up to several 100 TeV are particularly important to spectrally resolve the cutoff regime of the long-sought Pevatrons, the cosmic-ray PeV accelerators. One component of the TAIGA hybrid detector is the TAIGA-HiSCORE timing array, which currently consists of 28 wide angle (0.6 sr) air Cherenkov timing stations distributed on an area of 0.25 km2 . The HiSCORE concept is based on (non-imaging) air shower front sampling with Cherenkov light. First results are presented.

Published
2017

23. Tunka-HiSCORE – A new array for multi-TeV γ-ray astronomy and cosmic-ray physics

Author

O. Gress, M. Brüeckner, S. Berezhnev, N. Budnev, M. Buker, O. Chvalaev, A. Dyachok, U. Einhaus, S. Epimakhov, D. Hampf, D. Horns, N. Kalmykov, N. Karpov, E. Konstantinov, E. Korosteleva, M. Kunnas, V. Kozhin, L. Kuzmichev, B. Lubsandorzhiev, N. Lubsandorzhiev, R. Mirgazov, R. Monkhoev, R. Nachtigall, A. Pakharukov, M. Panasyuk, L. Pankov, E. Popova, A. Porelli, V. Prosin, V. Ptuskin, G. Rowell, Yu Semeney, B. Shaibonov, A. Silaev, A. Silaev(ju), A. Skurikhin, C. Spiering, D. Spitschan, L. Sveshnikova, M. Tluczykont, R. Wischnewski, I. Yashin, A. Zagorodnikov, and V. Zirakashvili

Subjects
Physics, Nuclear and High Energy Physics, COSMIC cancer database, Sky, media_common.quotation_subject, Detector, Astronomy, Cosmic ray, Astrophysics, Instrumentation, Cherenkov radiation, media_common
Abstract

Tunka-HiSCORE (HiSCORE: Hundred Square-km Cosmic Origin Explorer) is a new Cherenkov EAS arrayfor multi-TeV γ ray astronomy and cosmic ray studies. The array will consist of wide-angle (0.6 sr)optical stations with 150 m distance between individual stations. The array will be constructed in severalstages: beginning with a 1 km 2 array at the first stage up to 100 km at the last stage. The first threestations have been installed during 2012 in Tunka Valley (50 km from the Southern tip of Lake Baikal) atthe site of the Tunka-133 array. We describe the construction of the optical stations and the array DAQ,and present the first results of common operation of the new optical stations with the Tunka-133 array.& 2013 Elsevier B.V. All rights reserved. 1. IntroductionWe propose to explore the so far poorly measured cosmic ray andγ ray sky in the energy region from 20 TeV to 100 PeV with thelarge area wide-angle cosmic ray and γ ray detector Tunka-HiSCORE[1,2]. Tunka-HiSCORE will be a non-imaging Cherenkov light-frontsampling array with large sensitive area (0.5 m

Published
2013

24. Method of Separation Between Light and Heavy Groups of Primary CR Nuclei by LDF of Cherenkov Light in the Range 300–3000 TeV

Author

A S Elshoukrofy, L Sveshnikova, E Postnikov, I Astapov, P Bezyazeekov, V Boreyko, A Borodin, M Brueckner, N Budnev, A Chiavassa, A Dyachok, O Fedorov, A Gafarov, A Garmash, N Gorbunov, V Grebenyuk, O Gress, T Gress, O Grishin, A Grinyuk, D Horns, A Ivanova, N Kalmykov, Y Kazarina, V Kindin, S Kiryuhin, P Kirilenko, R Kokoulin, K Kompaniets, E Korosteleva, V Kozhin, E Kravchenko, M Kunnas, L Kuzmichev, Y Lemeshev, V Lenok, B Lubsandorzhiev, N Lubsandorzhiev, R Mirgazov, R Mirzoyan, R Monkhoev, R Nachtigall, E Osipova, A Pakhorukov, M Panasyuk, L Pankov, A Petrukhin, V Poleschuk, M Popescu, E Popova, A Porelli, V Prosin, V Ptuskin, E Rjabov, G Rubtsov, A Pushnin, Y Sagan, B Sabirov, V Samoliga, Y Semeney, A Silaev, A Silaev Jr, A Sidorenkov, A Skurikhin, V Slunecka, A Sokolov, C Spiering, V Tabolenko, B Tarashansky, A Tkachenko, L Tkachev, M Tluczykont, R Wischnewski, A Zagorodnikov, D Zhurov, V Zurbanov, I Yashin, A A Darwish, and H A Motaweh

Subjects
Physics, Range (particle radiation), Distribution function, Primary (astronomy), Astrophysics::High Energy Astrophysical Phenomena, Separation (aeronautics), Measurement uncertainty, Energy (signal processing), Cherenkov radiation, Computational physics, Parametric statistics
Abstract

The problem of chemical composition below the knee in the cosmic-ray energy spectrum has not yet been solved due to low statistics collected from direct experiments. In the HiSCORE experiment the lateral distribution functions (LDF) of Cherenkov light of EASs with energy greater than hundreds of TeV can be measured in detail for millions of individual events. A full steepness of LDF is sensitive to the depth of shower maximum and as a result to primary particle type. In this paper, we developed a parametric method of separation between heavy and light groups of nuclei using the ’knee-like’ approximation of LDF and taking into account measurement uncertainty.

Published
2018

25. The Tunka detector complex: from cosmic-ray to gamma-ray astronomy

Author

N Budnev, I Astapov, N Barbashina, A Bogdanov, D Bogorodskii, V Boreyko, M Büker, M Brückner, A Chiavassa, O Chvalaev, O Gress, T Gress, A Dyachok, S Epimakhov, A Gafatov, N Gorbunov, V Grebenyuk, A Grinuk, A Haungs, R Hiller, D Horns, T Huege, A Ivanova, A Kalinin, N Karpov, N Kalmykov, Y Kazarina, V Kindin, N Kirichkov, S Kiryuhin, M Kleifges, R Kokoulin, K Komponiest, A Konstantinov, E Konstantinov, A Korobchenko, E Korosteleva, D Kostunin, V Kozhin, O Krömer, M Kunnas, L Kuzmichev, V Lenok, B Lubsandorzhiev, N Lubsandorzhiev, R Mirgazov, R Mirzoyan, R Monkhoev, R Nachtigall, A Pakhorukov, M Panasyuk, L Pankov, A Petrukhin, V Platonov, V Poleschuk, E Popova, A Porelli, V Prosin, V Ptuskin, G Rubtsov, C Rühle, V Samoliga, P Satunin, V Savinov, A Saunkin, F Schröder, Yu Semeney, B Shaibonov, A Silaev, A Skurikhin, V Slucka, C Spiering, L Sveshnikova, V Tabolenko, A Tkachenko, L Tkachev, M Tluczykont, D Voronin, R Wischnewski, A Zagorodnikov, V Zurbanov, and I Yashin

Subjects
Physics, History, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cosmic ray, Knee region, Astrophysics, Gamma-ray astronomy, Cherenkov Telescope Array, Computer Science Applications, Education, ddc:530, Cherenkov radiation
Abstract

TAIGA stands for "Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy" and is a project to build a complex, hybrid detector system for ground-based gamma- ray astronomy from a few TeV to several PeV, and for cosmic-ray studies from 100 TeV to 1 EeV. TAIGA will search for "PeVatrons" (ultra-high energy gamma-ray sources) and measure the composition and spectrum of cosmic rays in the knee region (100 TeV - 10 PeV) with good energy resolution and high statistics. TAIGA will include Tunka-HiSCORE (an array of wide-angle air Cherenkov stations), an array of Imaging Atmospheric Cherenkov Telescopes, an array of particle detectors, both on the surface and underground, and the TUNKA-133 air Cherenkov array.

Published
2015

26. Towards gamma-ray astronomy with timing arrays

Author

M Tluczykont, I Astapov, N Barbashina, S Beregnev, A Bogdanov, D Bogorodskii, V Boreyko, M Brückner, N Budnev, A Chiavassa, O Chvalaev, A Dyachok, S Epimakhov, T Eremin, A Gafarov, N Gorbunov, V Grebenyuk, O Gress, T Gress, A Grinyuk, O Grishin, D Horns, A Ivanova, N Karpov, N Kalmykov, Y Kazarina, V Kindin, N Kirichkov, S Kiryuhin, R Kokoulin, K Kompaniets, E Konstantinov, A Korobchenko, E Korosteleva, V Kozhin, M Kunnas, L Kuzmichev, V Lenok, B Lubsandorzhiev, N Lubsandorzhiev, R Mirgazov, R Mirzoyan, R Monkhoev, R Nachtigall, A Pakhorukov, M Panasyuk, L Pankov, A Perevalov, A Petrukhin, V Platonov, V Poleschuk, M Popescu, E Popova, A Porelli, S Porokhovoy, V Prosin, V Ptuskin, V Romanov, G Rubtsov, M Rueger, E Rybov, V Samoliga, P Satunin, A Saunkin, V Savinov, Yu Semeney, B Shaibonov, A Silaev, A Skurikhin, M Slunecka, C Spiering, L Sveshnikova, V Tabolenko, A Tkachenko, L Tkachev, A Veslopopov, E Veslopopova, D Voronov, R Wischnewski, I Yashin, K Yurin, A Zagorodnikov, V Zirakashvili, and V Zurbanov

Subjects
Physics, History, Range (particle radiation), Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cosmic ray, Gamma-ray astronomy, Astrophysics, Computer Science Applications, Education, law.invention, Telescope, Crab Nebula, law, ddc:530, Cherenkov radiation, Energy (signal processing)
Abstract

The gamma-ray energy regime beyond 10 TeV is crucial for the search for the most energetic Galactic accelerators. The energy spectra of most known gamma-ray emitters only reach up to few 10s of TeV, with 80 TeV from the Crab Nebula being the highest energy so far observed significantly. Uncovering their spectral shape up to few 100 TeV could answer the question whether some of these objects are cosmic ray Pevatrons, i.e. Galactic PeV accelerators.Sensitive observations in this energy range and beyond require very large effective detector areas of several 10s to 100 square-km. While imaging air Cherenkov telescopes have proven to be the instruments of choice in the GeV to TeV energy range, very large area telescope arrays are limited by the number of required readout channels per instrumented square-km (due to the large number of channels per telescope). Alternatively, the shower-front sampling technique allows to instrument large effective areas and also naturally provides large viewing angles of the instrument. Solely measuring the shower front light density and timing (hence timing- arrays), the primary particle properties are reconstructed on the basis of the measured lateral density function and the shower front arrival times. This presentation gives an overview of the technique, its goals, and future perspective.

Published
2015

27. Simulation of the hybrid Tunka Advanced International Gamma-ray and Cosmic ray Astrophysics (TAIGA)

Author

M Kunnas, I Astapov, N Barbashina, S Beregnev, A Bogdanov, D Bogorodskii, V Boreyko, M Brückner, N Budnev, A Chiavassa, O Chvalaev, A Dyachok, S Epimakhov, T Eremin, A Gafarov, N Gorbunov, V Grebenyuk, O Gress, T Gress, A Grinyuk, O Grishin, D Horns, A Ivanova, N Karpov, N Kalmykov, Y Kazarina, V Kindin, N Kirichkov, S Kiryuhin, R Kokoulin, K Kompaniets, E Konstantinov, A Korobchenko, E Korosteleva, V Kozhin, L Kuzmichev, V Lenok, B Lubsandorzhiev, N Lubsandorzhiev, R Mirgazov, R Mirzoyan, R Monkhoev, R Nachtigall, A Pakhorukov, M Panasyuk, L Pankov, A Perevalov, A Petrukhin, V Platonov, V Poleschuk, M Popescu, E Popova, A Porelli, S Porokhovoy, V Prosin, V Ptuskin, V Romanov, G I Rubtsov, null Müger, E Rybov, V Samoliga, P Satunin, A Saunkin, V Savinov, Yu Semeney, B Shaibonov, A Silaev, A Skurikhin, M Slunecka, C Spiering, L Sveshnikova, V Tabolenko, A Tkachenko, L Tkachev, M Tluczykont, A Veslopopov, E Veslopopova, D Voronov, R Wischnewski, I Yashin, K Yurin, A Zagorodnikov, V Zirakashvili, and V Zurbanov

Subjects
Physics, History, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Cosmic ray, Astrophysics, Hybrid approach, Wide field, Computer Science Applications, Education, Angular resolution, ddc:530, Cherenkov radiation
Abstract

Up to several 10s of TeV, Imaging Air Cherenkov Telescopes (IACTs) have proven to be the instruments of choice for GeV/TeV gamma-ray astronomy due to their good reconstrucion quality and gamma-hadron separation power. However, sensitive observations at and above 100 TeV require very large effective areas (10 km2 and more), which is difficult and expensive to achieve.The alternative to IACTs are shower front sampling arrays (non-imaging technique or timing-arrays) with a large area and a wide field of view. Such experiments provide good core position, energy and angular resolution, but only poor gamma-hadron separation. Combining both experimental approaches, using the strengths of both techniques, could optimize the sensitivity to the highest energies.The TAIGA project plans to combine the non-imaging HiSCORE [8] array with small (~10m2) imaging telescopes. This paper covers simulation results of this hybrid approach.

Published
2015

28. Vibrations of a fan jet in running a supersonic jet into a notched obstacle

Author

A. V. Kozhin and V. S. Demin

Subjects
Physics, Jet (fluid), Astrophysics::High Energy Astrophysical Phenomena, Mechanical Engineering, Acoustics, Honing, Aerodynamics, Condensed Matter Physics, Vibration, Mechanics of Materials, Obstacle, Physics::Atomic and Molecular Clusters, High Energy Physics::Experiment, Supersonic speed, Physics::Chemical Physics, Choked flow
Abstract

Some kinds of vibrations of a fan jet are described. A physical model of one kind of self-excited vibrations of the fan jet is formulated. The formulas to calculate the frequencies of self-excited vibrations are given.

Published
1999

29. The TAIGA experiment: from cosmic ray to gamma-ray astronomy in the Tunka valley

Author

N Budnev, I Astapov, P Bezyazeekov, A Bogdanov, V Boreyko, M Büker, M Brückner, A Chiavassa, O Chvalaev, O Gress, T Gress, O Grishin, A Dyachok, S Epimakhov, O Fedorov, A Gafarov, N Gorbunov, V Grebenyuk, A Grinuk, A Haungs, R Hiller, D Horns, T Huege, A Ivanova, A Kalinin, N Karpov, N Kalmykov, Y Kazarina, N Kirichkov, S Kiryuhin, M Kleifges, R Kokoulin, K Komponiest, A Konstantinov, E Korosteleva, D Kostunin, V Kozhin, O Krömer, M Kunnas, L Kuzmichev, V Lenok, B Lubsandorzhiev, N Lubsandorzhiev, R Mirgazov, R Mirzoyan, R Monkhoev, R Nachtigall, A Pakhorukov, M Panasyuk, L Pankov, A Perevalov, A Petrukhin, V Platonov, V Poleschuk, E Popova, A Porelli, V Prosin, V Ptuskin, G Rubtsov, A Pushnin, V Samoliga, P Satunin, F Schröder, Yu Semeney, A Silaev, A Skurikhin, V Slucka, C Spiering, L Sveshnikova, V Tabolenko, B Tarashansky, A Tkachenko, L Tkachev, M Tluczykont, D Voronin, R Wischnewski, A Zagorodnikov, V Zurbanov, and I Yashin

Subjects
Physics, History, Muon, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Taiga, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cosmic ray, Astrophysics, Gamma-ray astronomy, 01 natural sciences, Computer Science Applications, Education, 0103 physical sciences, High Energy Physics::Experiment, ddc:620, 010306 general physics, Engineering & allied operations, Cherenkov radiation, Muon detector, Lepton
Abstract

The physical motivations and advantages of the new gamma-observatory TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) is presented. The TAIGA array is a complex, hybrid detector for ground-based gamma-ray astronomy for energies from a few TeV to several PeV as well as for cosmic ray studies from 100 TeV to several EeV. The TAIGA will include the wide angle Cherenkov array TAIGA-HiSCORE with ~5 km$^{2}$ area, a net of 16 IACT telescopes (with FOV of about 10x10 degree), muon detectors with a total area of up to 2000-3000 m$^{2}$ and the radio array Tunka-Rex.

Published
2016

30. Optimization of Produced Water Dumping Using Conceptual Model of Field Infrastructure

Author

Sergei Vyeheslavovich Lomovskikh, E. Sukhov, Y. Nekipelov, V. Kozhin, V. Shashel, and V. Smyslov

Subjects
Engineering, business.industry, Field (Bourdieu), Dumping, Environmental resource management, Conceptual model (computer science), business, Produced water, Civil engineering
Abstract

The systematic and structured approach towards field development that is actively developing now has resulted in occurrence of a series of conceptual tasks resolved within the framework of one field or the whole region [1]. The papers dedicated to conceptual and integrated designing are considering these tasks at a level of one field [2, 3] and do not cover the problems arising within the framework of joint development of group of oil fields. The given paper presents the approach towards the solution of optimization tasks of various complexities within the framework of oil-producing region. One of these tasks is presented by a problem how to dispose the increasing volume of produced water from the whole group of oil fields located at Samara region and connected to some extent by common corridors for surface lines [4]. The given task has a set of features characteristic just for this region, such as incompatibility of formation waters and restrictions for water injection at water disposal sites. In order to resolve the above-stated tasks the authors of the given paper present the regional conceptual model of surface facilities for southern group of OAO ”Samaraneftegas” fields that include 57 fields and 27 field objects. Every field object of the model is described using a simplified pattern to work in various modes. The model allows analyzing and optimizing at the basis of dynamic programming the joint operation of field and linear objects to maintain the planned levels of fluid production and fluid injection remote horizon planning. The open object-guided programmed code describing conceptual model, easily allows complicating of its structure, increasing the detailing and accuracy of decision taken, as is required. Using the regional conceptual model of surface facilities shows the solution of an urgent task to optimize the disposal of formation water produced at the southern group of OAO ”Samaraneftegas” fields.

Published
2010

32. Transrotational crystals growing in amorphous Cu-Te film

Author

V. Yu. Kolosov, L. M. Veretennikov, A. V. Kozhin, and C. L. Schwamm

Subjects
Condensed Matter::Materials Science, Materials science, Electron diffraction, Condensed matter physics, law, Lattice (order), Crystallization, law.invention, Amorphous solid, Vacuum evaporation
Abstract

Crystallization in amorphous films often results in strong internal lattice bending: TEM reveals regular rotation of initial lattice orientation across the growing microcrystals [1]. According to electron diffraction data our deposits prepared by vacuum evaporation of Te layer upon Cu layer are initially amorphous in wide range of thickness and composition. Te crystals growing later in these films carry regular bend contour patterns on the TEM images useful [2] for careful analysis of lattice orientations and lattice bending.

Published
2008

33. Crystallization of thin films of antimony sulfide

Author

A. V. Kozhin, I. E. Bolotov, and S. B. Fisheleva

Subjects
chemistry.chemical_classification, Carbon film, Materials science, Chemical engineering, Antimony, chemistry, Sulfide, law, General Physics and Astronomy, chemistry.chemical_element, Thin film, Crystallization, law.invention
Published
1970

34. TAIGA observatory: IACT fabrication and tests

Author

Yaroslav Sagan, I. Astapov, Pavel Bezyazeekov, A. Borodin, M. Brueckner, N. M. Budnev, A. Chiavassa, A. N. Dyachok, O. Fedorov, A. R. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, T. I. Gress, A. Grinyuk, O. Grishin, Dieter Horns, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, P. Kirilenko, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, M. Kunnas, L. Kuzmichev, Yu. Lemeshev, V. Lenok, N. Lubsandorzhiev, B. Lubsandorzhiev, R. R. Mirgazov, R. Mirzoyan, R. Monkhoev, R. Nachtigall, E. Osipova, A. Pakhorukov, A. Pan, M. I. Panasyuk, L. Pankov, A. Petrukhin, V. Poleschuk, E. Popescu, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, E. Rjabov, G. Rubtsov, B. Sabirov, V. Samoliga, Andrei Sidorenkov, A. Silaev, A. Silaev(junior), V. Slunecka, A. V. Skurikhin, A. Sokolov, Y. Suvorkin, L. Sveshnikova, V. A. Tabolenko, A. Tanaev, B. Tarashansky, L. Tkachev, M. Tluczykont, R. Wishnevski, I. Yashin, A. Zagorodnikov, and D. Zhurov

Subjects
Physics, Fabrication, Observatory, Gamma ray, Astronomy, Cosmic ray, IACT, Cherenkov radiation
Abstract

Imaging Atmospheric Cherenkov Telescopes (IACTs) are one of the key parts of the TAIGA observatory, which is designed to study gamma rays and charged cosmic rays in the energy range of 10^13 eV – 10^18 eV. The current prototype phase comprises three IACTs. The first IACT was fabricated at JINR, Dubna, and started its first commissioning season in the Tunka valley in 2017. The second one has been assembled there in fall 2018, the third structure one is ready for installation in autumn 2019. This report presents the main TAIGA IACT characteristics and results from pointing performance studies in the last 2 seasons. We also describe R&D activities started to fabricate focusing glass mirrors at JINR, and give results for the first prototypes measurements.

35. Commissioning the joint operation of the wide angle timing HiSCORE Cherenkov array with the first IACT of the TAIGA experiment

Author

Lyubov Sveshnikova, E. Postnikov, I. Astapov, Pavel Bezyazeekov, V. Boreyko, A. Borodin, M. Brueckner, N. M. Budnev, A. Chiavassa, Aleksei Nikolaevich Dyachok, A.S. Elshoukrofy, O. Fedorov, Aleksandr Gafarov, A. Garmash, N. Gorbunov, Victor Grebenyuk, O. Gress, T. I. Gress, O. Grishin, A. Grinyuk, Dieter Horns, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, M. Kunnas, L. Kuzmichev, Yu. Lemeshev, V. Lenok, B. Lubsandorzhiev, N. Lubsandorzhiev, Rashid Mirgazov, Razmik Mirzoyan, R. Monkhoev, R. Nachtigall, E. Osipova, A. Pakhorukov, M. I. Panasyuk, Leonid Pankov, A. Petrukhin, V. Poleschuk, E. Popescu, E. Popova, A. Porelli, V. Prosin, V. Ptuskin, Evgenii V Rjabov, G. Rubtsov, A. Pushnin, Yaroslav Sagan, B. Sabirov, V. Samoliga, Yu. Semeney, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, Aleksandr Vasilevich Skurihin, V. Slunecka, A. V. Sokolov, C. Spiering, V. A. Tabolenko, B. Tarashansky, A. Tkachenko, L. Tkachev, M. Tluczykont, R. Wischnewski, Aleksey Zagorodnikov, D. Zhurov, Valery Zurbanov, and I. Yashin

Subjects
Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, IACT, Cosmic ray, Coincidence, law.invention, Telescope, law, Hybrid array, Environmental science, Image resolution, Cherenkov radiation, Remote sensing
Abstract

The first IACT as part of the gamma and cosmic-ray experiment TAIGA was installed in the Tunka Valley near Lake Baikal in fall 2016. In the following months different systems of the telescope were put into test operation. We started the commissioning phase of operating the telescope in time coincidence with the wide angle integrating air Cherenkov HiSCORE array, which for the time being comprises 28 working stations. We anticipate that the hybrid operation of the non-imaging and imaging telescopes will lead to a cost-efficient, highly sensitive detector operating in the energy range from 30-50 TeV till several PeV. Here we want to report on the first test results of operating the prototype hybrid array. We will focus on the analysis of count rates and image size spectra for all events detected by the IACT and the joint events detected also by the HiSCORE array, comparing these with expectations from MC simulations.

36. Search for gamma-ray emission above 50 TeV from Crab Nebula with the TAIGA detector

Author

Lyubov Sveshnikova, I. Astapov, Pavel Bezyazeekov, V. Boreyko, A. Borodin, M. Brueckner, N. M. Budnev, A. Chiavassa, Aleksei Nikolaevich Dyachok, O. Fedorov, Aleksandr Gafarov, N. Gorbunov, Victor Grebenyuk, O. Gress, T. I. Gress, O. Grishin, A. Grinyuk, Dieter Horns, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, M. Kunnas, L. Kuzmichev, Yu. Lemeshev, V. Lenok, B. Lubsandorzhiev, N. Lubsandorzhiev, Rashid Mirgazov, Razmik Mirzoyan, R. Monkhoev, R. Nachtigall, E. Osipova, A. Pakhorukov, M. I. Panasyuk, Leonid Pankov, A. Petrukhin, V. Poleschuk, E. Popescu, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, Evgenii V Rjabov, G. Rubtsov, A. Pushnin, Yaroslav Sagan, B. Sabirov, V. Samoliga, Yu. Semeney, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, Aleksandr Vasilevich Skurihin, V. Slunecka, A. V. Sokolov, C. Spiering, V. A. Tabolenko, B. Tarashansky, A. Tkachenko, L. Tkachev, M. Tluczykont, R. Wischnewski, Aleksey Zagorodnikov, D. Zhurov, Valery Zurbanov, and I. Yashin

Subjects
Physics, Crab Nebula, Observatory, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Extrapolation, Gamma ray, Cosmic ray, Angular resolution, Astrophysics, Cherenkov radiation
Abstract

The TAIGA (Tunka Advanced Instrument for cosmic rays and Gamma-Astronomy) observatory is designed to study the gamma ray sources and galactic cosmic rays. It is located in the Tunka Valley 50 km from the lake Baikal (Siberia). The first part of TAIGA called the EAS Cherenkov array TAIGA-HiSCORE currently consists of 28 wide-angle (0.6 sr) stations, distributed over an area of 0.25 km^2. The Crab observation exposure was about 115 hours during the winter seasons of 2016-2017. The expected gamma quanta excess depends on the array energy threshold and a model of the Crab energy spectrum extrapolation to the higher energies. We present preliminary results of experimental data and MC simulations comparison as well as energy threshold and angular resolutions. The experimental data is in a good agreement with the simulations. An excess of events (about 25 events in the region 30-63 TeV) observed from the Crab direction is compatible with the expected one.

37. Camera of the first TAIGA-IACT: Construction and calibration

Author

Nima Lubsandorzhiev, I. Astapov, Pavel Bezyazeekov, V. Boreyko, A. Borodin, M. Brueckner, N. M. Budnev, A. Chiavassa, Aleksei Nikolaevich Dyachok, O. Fedorov, Aleksandr Gafarov, A. Garmash, N. Gorbunov, Victor Grebenyuk, O. Gress, T. I. Gress, O. Grishin, A. Grinyuk, Dieter Horns, A. Igoshin, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, P. Kirilenko, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, M. Kunnas, L. Kuzmichev, Yu. Lemeshev, V. Lenok, B. Lubsandorzhiev, Rashid Mirgazov, Razmik Mirzoyan, R. Monkhoev, R. Nachtigall, E. Osipova, A. Pakhorukov, M. I. Panasyuk, Leonid Pankov, A. Petrukhin, V. Poleschuk, E. Popescu, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, Evgenii V Rjabov, G. Rubtsov, A. Pushnin, Yaroslav Sagan, B. Sabirov, V. Samoliga, Yu. Semeney, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, Aleksandr Vasilevich Skurihin, V. Slunecka, A. V. Sokolov, C. Spiering, L. Sveshnikova, V. A. Tabolenko, B. Tarashansky, A. Tkachenko, L. Tkachev, M. Tluczykont, R. Wischnewski, Aleksey Zagorodnikov, D. Zhurov, Valery Zurbanov, and I. Yashin

Subjects
Physics, Photomultiplier, business.industry, Detector, IACT, law.invention, Telescope, Data acquisition, Optics, law, Calibration, Focal length, business, Cherenkov radiation
Abstract

The first imaging atmospheric Cherenkov telescope as a part of the TAIGA (Tunka Advanced Instrument for cosmic rays and Gamma Astronomy) detector was put into commission in the Tunka valley in December 2016. The reflector of the telescope follows the Davis-Cotton design. It is composed of 34 glassmirror tiles, each of 60 cm diameter, and has a diameter of 4.3 m. The focal length is 4.75 m. The imaging camera includes 560 photomultiplier-based pixels, providing a FoV of ~10×10 degrees. The imaging camera is made by using a modular principle and includes trigger, data acquisition and processing systems based on MAROC3 chips. The slow control system monitors the count rate and the PMT anode currents as well as controls the high voltage. For monitoring performance of the camera a dedicated calibration system based on nanosecond pulsed LED light source was developed.

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