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5 results on '"N.I. Karpov"'

1. The primary cosmic-ray energy spectrum measured with the Tunka-133 array

Author

N.M. Budnev, A. Chiavassa, O.A. Gress, T.I. Gress, A.N. Dyachok, N.I. Karpov, N.N. Kalmykov, E.E. Korosteleva, V.A. Kozhin, L.A. Kuzmichev, B.K. Lubsandorzhiev, N.B. Lubsandorzhiev, R.R. Mirgazov, E.A. Osipova, M.I. Panasyuk, L.V. Pankov, E.G. Popova, V.V. Prosin, V.S. Ptuskin, Yu.A. Semeney, A.A. Silaev, A.A. Silaev(junior), A.V. Skurikhin, C. Spiering, L.G. Sveshnikova, and A.V. Zagorodnikov

Subjects
Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Range (particle radiation), Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astronomy and Astrophysics, Cosmic ray, Computational physics, Amplitude, Air shower, Calibration, Ultra-high-energy cosmic ray, Astrophysics - High Energy Astrophysical Phenomena, Cherenkov radiation, Energy (signal processing)
Abstract

The EAS Cherenkov light array Tunka-133, with $\sim$ 3 km$^2$ geometric area, is taking data since 2009.The array permits a detailed study of energy spectrum and mass composition of cosmic rays in the energy range from $6\cdot 10^{15}$ to $10^{18}$ eV. We describe the methods of time and amplitude calibration of the array and the methods of EAS parameters reconstruction. We present the all-particle energy spectrum, based on 7 seasons of operation., Comment: 12 pages,18 figures

Published
2021
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2. Tunka-133: Results of 3 year operation

Author

V.V. Prosin, S.F. Berezhnev, N.M. Budnev, A. Chiavassa, O.A. Chvalaev, O.A. Gress, A.N. Dyachok, S.N. Epimakhov, N.I. Karpov, N.N. Kalmykov, E.N. Konstantinov, A.V. Korobchenko, E.E. Korosteleva, V.A. Kozhin, L.A. Kuzmichev, B.K. Lubsandorzhiev, N.B. Lubsandorzhiev, R.R. Mirgazov, M.I. Panasyuk, L.V. Pan'kov, E.G. Popova, V.S. Ptuskin, Yu.A. Semeney, A.A. Silaev, A.V. Skurikhin, C. Spiering, L.G. Sveshnikova, I.V. Yashin, and A.V. Zagorodnikov

Subjects
Physics, Nuclear and High Energy Physics, Astrophysics::High Energy Astrophysical Phenomena, Cosmic ray, Astrophysics, Mass composition, Electromagnetic radiation, Spectral line, Computational physics, Data acquisition, Range (statistics), ddc:530, Instrumentation, Energy (signal processing), Cherenkov radiation
Abstract

The EAS Cherenkov light array Tunka-133, with ~3 km2 geometric area, is taking data since 2009. The array permits a detailed study of cosmic ray energy spectrum and mass composition in the PeV energy range. After a short description of the methods of EAS parameter reconstruction, we present the all-particle energy spectrum and results of studying CR composition, based on 3 seasons of array operation. In the last part of the paper, we discuss possible interpretations of the obtained results.

Published
2014

3. The Tunka – Multi-component EAS detector for high energy cosmic ray studies

Author

S.F. Berezhnev, D. Besson, N.M. Budnev, M. Büker, M. Brüeckner, A. Chiavassa, O.A. Chvalaev, O.A. Gress, A.N. Dyachok, S.N. Epimakhov, D. Hampf, A. Haungs, R. Hiller, D. Horns, A. Ivanova, N.I. Karpov, N.N. Kalmykov, Yu. Kazarina, E.N. Konstantinov, D. Kostunin, A.V. Korobchenko, E.E. Korosteleva, V.A. Kozhin, M. Kunnas, L.A. Kuzmichev, B.K. Lubsandorzhiev, N.B. Lubsandorzhiev, R.R. Mirgazov, R. Monhoev, R. Nachtigall, M.I. Panasyuk, L.V. Pankov, A.L. Pankov, A. Pokhorukov, E.G. Popova, A. Porelli, V.V. Prosin, V.S. Ptuskin, G.P. Rowell, F.G. Schröder, Yu.A. Semeney, B.A. Shaibonov, A.A. Silaev, A.V. Skurikhin, C. Spiering, D. Spitschan, L.G. Sveshnikova, R. Wischnewski, I.V. Yashin, and A.V. Zagorodnikov

Subjects
Physics, Nuclear and High Energy Physics, Scintillation, High energy, Range (particle radiation), Detector, Astronomy, Cosmic ray, law.invention, Telescope, law, Instrumentation, Cherenkov radiation, Energy (signal processing), Remote sensing
Abstract

The EAS Cherenkov array Tunka-133, with about 3 km 2 sensitive area, has been installed in the Tunka Valley, Siberia. The accessible energy range is 10 15 –10 18 eV. In this contribution, a description of the array and main results obtained so far are presented. A current update of the array includes the deployment of scintillation stations, radio antennas, as well as optical stations. The deployments of these optical stations are the first step towards Tunka-HiSCORE, a wide-angle, large field-of-view gamma-ray telescope.

Published
2013

4. Tunka-133: preliminary results from the first year of operation

Author

B.V. Antokhanov, S.F. Berezhnev, D. Besson, N.M. Budnev, A. Chiavassa, O.A. Chvalaiev, O.A. Gress, A.N. Dyachok, N.I. Karpov, N.N. Kalmykov, A.V. Korobchenko, V.A. Kozhin, E.E. Korosteleva, L.A. Kuzmichev, B.K. Lubsandorzhiev, R.R. Mirgazov, M.I. Panasyuk, L.V. Pankov, E.G. Popova, Vasili V. Prosin, V.S. Ptuskin, Yu.A. Semeney, B.A. Shaibonov, A.A. Silaev, A.V. Skurikhin, J. Snyder, C. Spiering, M. Stockham, R. Wischnewski, I.V. Yashin, A.V. Zablotsky, and A.V. Zagorodnikov

Subjects
Physics, Nuclear and High Energy Physics, Optical detectors, COSMIC cancer database, Pulse waveform, Meteorology, ddc:530, Cosmic ray, Atomic and Molecular Physics, and Optics, Cherenkov radiation, Remote sensing
Abstract

The new array Tunka-133 started data taking at the end of 2009. The apparatus records the Cherenkov light pulse waveform of extensive air showers (EAS). It consists of 133 optical detectors deployed over an area of about 1 km 2 . About two million events have been collected during 286 hours of clean moonless nights in winter 2009-2010. Using these data, we present methods of primary cosmic particle parameter reconstruction for EAS with the core both inside and outside the array and give preliminary results.

Published
2011

5. Prompt diagnostics of the cyclotron dees shift

Author

N.I. Karpov, L.I. Judin, S.T. Latushkin, Yu.M. Krasnikov, and I.V. Naumov

Subjects
Physics, Optical fiber, Gas laser, business.industry, Amplifier, Cyclotron, Curved mirror, Laser, law.invention, Optics, law, Measuring instrument, Millimeter, business
Abstract

A device for prompt observation of the cyclotron dees shift in vertical and horizontal directions includes a gas laser, the light of which is reflected from a concave spherical mirror fixed on the controlled duant and a TV monitoring system for controlling the light reflection shift. The tests on the IAE cyclotron showed device sensitivities of up to tenth fractions of a millimeter. The transmission of optical information over a fiber optics line considerably simplifies the arrangement of construction elements. >

Published
2002

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