Персона: Александрин, Сергей Юрьевич
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Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
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- ПубликацияТолько метаданныеSpatial and Temporal Variations of Proton Fluxes in the Earth’s Inner Radiation Belt during a Solar Cycle(2019) Aleksandrin, S. Y.; Galper, A. M.; Koldashov, S. V.; Malakhov, V. V.; Mikhailov, V. V.; Zharaspayev, T. R.; Александрин, Сергей Юрьевич; Малахов, Виталий Валерьевич; Михайлов, Владимир Владимирович© 2019, Allerton Press, Inc.Abstract: The results are presented from an analysis of proton fluxes in the inner radiation belt (RB), obtained with the ARINA spectrometer. The ARINA satellite experiment was performed on board the Russian low-orbit spacecraft Resurs-DK1 (altitude 350–600 km; inclination 70°; duration, 2006–2016). The spectrometer registered high-energy protons (30–100 MeV) with an energy resolution of 10% and an angular resolution of 7°. The geographical and pitch-angle distribution of proton flux in the inner radiation belt (1.15 < L < 2.0) were analyzed during the waning phase of the 23rd solar cycle and main part of the 24th cycle. It is shown that the proton flux intensity depends on the phase of the solar cycle (the minimum intensity is observed in the period of the solar activity maximum and vice versa) and varies by 2–7 times for different L‑shells.
- ПубликацияТолько метаданныеProton flux variations in the inner radiation belt in solar cycle 24(2021) Aleksandrin, S. Yu.; Galper, A. M.; Koldashov, S. V.; Malakhov, V. V.; Mikhailov, V. V.; Zharaspayev, T. R.; Александрин, Сергей Юрьевич; Малахов, Виталий Валерьевич; Михайлов, Владимир Владимирович© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0)This report presents the results of analysis of proton flux variations in the inner radiation belt obtained by ARINA spectrometer. The ARINA satellite experiment was carried out on board the Russian low-orbit satellite Resurs-DK1 (altitude 350-600 km, inclination 70o) from 2006 till 2016. The spectrometer registered high-energy protons (30-100 MeV) with energy resolution of 10 % and angular resolution of 7o. In this work proton flux variations in the inner radiation belt (L=1.14, B=0.20 G) were analyzed with solar index F10.7 in various phases of the 24th solar cycle. Proton flux anticorrelates with F10.7 index (coefficient correlation -0.95) and its value varies 5-7 times. Time lag between proton flux and F10.7 index was found to be 5-6 months for total period (2006-2016) and it can decrease to 2-3 months in some periods of the 24th solar cycle.
- ПубликацияТолько метаданныеEvolution of electron spectrum during March 2012 by ARINA spectrometer data(2022) Yu, A. S.; Galper, A. M.; Mikhailov, V. V.; Zharaspayev, T. R.; Александрин, Сергей Юрьевич; Михайлов, Владимир ВладимировичElectron fluxes with energies of 3-30 MeV were analyzed using data from the ARINA satellite experiment. The changes in the spectrum of high-energy electrons in March 2012 were analyzed. © Copyright owned by the author(s) under the terms of the Creative Commons.
- ПубликацияТолько метаданныеDynamics of High-Energy Proton Fluxes in the South Atlantic Anomaly Region According to ARINA and VSPLESK Satellite Experiment Data(2023) Aleksandrin, S. Yu.; Grachev, V. M.; Olshevsky, E. I.; Александрин, Сергей Юрьевич; Грачев, Виктор Михайлович; Ольшевский, Егор Иванович
- ПубликацияТолько метаданныеCapabilities of the GAMMA-400 gamma-ray telescope to study the relationship between high-energy particle precipitation from the Earth's inner radiation belt and electromagnetic radiation of gamma-ray bursts(2025) Mayorov, A. G.; Leonov, A. A.; Aleksandrin, S. Yu.; Alexeev, V. V.; Arkhangelskaja, I. V.; Arkhangelskiy, A. I.; Chernysheva, I. V.; Dalkarov, O. D.; Kheymits, M. D.; Korotkov, M. G.; Malakhov, V. V.; Malinin, A. G.; Morozova, D. N.; Siruk, S. A.; Yurkin, Y. T.; Майоров, Андрей Георгиевич; Леонов, Алексей Анатольевич; Александрин, Сергей Юрьевич; Архангельская, Ирина Владимировна; Архангельский, Андрей Игоревич; Чернышева, Ирина Вячеславовна; Далькаров, Олег Дмитриевич; Хеймиц, Максим Дмитриевич; Коротков, Михаил Геннадиевич; Малахов, Виталий Валерьевич; Малинин, Александр Геннадьевич; Морозова, Дарья Николаевна; Сирук, Степан Александрович; Юркин, Юрий Тихонович
- ПубликацияОткрытый доступPrecision measurements of cosmic ray electron and positron spectra above 50 MeV with the PAMELA magnetic spectrometer(2020) Boezio, M.; Munini, R.; Ngobeni, M. D.; Aslam, O. P. M.; Mikhailov, V. V.; Aleksandrin, S. Y.; Koldobskiy, S. A.; Михайлов, Владимир Владимирович; Александрин, Сергей Юрьевич; Колдобский, Сергей Александрович© Published under licence by IOP Publishing Ltd.The PAMELA experiment with magnetic spectrometer operated almost ten years on board of the Resurs DK1 satellite. The satellite was launched on 15 June 2006 on polar orbit with an inclination of 70° and an altitude of 350-610 km. The spectrometer continuously measured charged cosmic ray particles in wide energy range from about 50 MeV up to several TeV. In this work the spectra of electrons and positrons averaged over one year were obtained from July of 2006 until January 2016, i.e. from the end of 23th and at the beginning of 24th solar cycle including the period of interplanetary magnetic field polarity reversal. These precise long duration time-dependent measurements of the electron and positron spectra are important to estimate possible contributions of exotic cosmic ray sources such as dark matter annihilation or decay.