Научная группа: Лаборатория перспективных детекторов элементарных частиц для космофизических исследований (Кафедра №7 ИЯФиТ)
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Нейтронный детектор космического гамма - телескопа "ГАММА-400"
(МИФИ, 2013) Тант, Зин; Кадилин, В. В.
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Time Dependence of the Flux of Helium Nuclei in Cosmic Rays Measured by the PAMELA Experiment between 2006 July and 2009 December
(2020) Marcelli, N.; Boezio, M.; Lenni, A.; Menn, W.; Galper, A. M.; Koldashov, S. V.; Koldobskiy, S. A.; Leonov, A. A.; Malakhov, V. V.; Mayorov, A. G.; Mikhailov, V. V.; Spillantini, P.; Voronov, S. A.; Yurkin, Y. T.; Колдобский, Сергей Александрович; Леонов, Алексей Анатольевич; Малахов, Виталий Валерьевич; Майоров, Андрей Георгиевич; Михайлов, Владимир Владимирович; Воронов, Сергей Александрович; Юркин, Юрий Тихонович
Precise time-dependent measurements of the Z = 2 component in the cosmic radiation provide crucial information about the propagation of charged particles through the heliosphere. The PAMELA experiment, with its long flight duration (2006 June 15-2016 January 23) and the low energy threshold (80 MeV/n) is an ideal detector for cosmic-ray solar modulation studies. In this paper, the helium nuclei spectra measured by the PAMELA instrument from 2006 July to 2009 December over a Carrington rotation time basis are presented. A state-of-the-art three-dimensional model for cosmic-ray propagation inside the heliosphere was used to interpret the time-dependent measured fluxes. Proton-to-helium flux ratio time profiles at various rigidities are also presented in order to study any features that could result from the different masses and local interstellar spectra shapes.
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The Upcoming GAMMA-400 Experiment
(2023) Suchkov, S. I.; Arkhangelskaja, I. V.; Arkhangelskiy, A. I.; Chernysheva, I. V.; Galper, A. M.; Dalkarov, O. D.; Kheymits, M. D.; Korotkov, M. G.; Leonov, A. A.; Malinin, A. G.; Mikhailov, V. V.; Yurkin, Y. T.; Архангельская, Ирина Владимировна; Архангельский, Андрей Игоревич; Чернышева, Ирина Вячеславовна; Далькаров, Олег Дмитриевич; Хеймиц, Максим Дмитриевич; Коротков, Михаил Геннадиевич; Леонов, Алексей Анатольевич; Малинин, Александр Геннадьевич; Михайлов, Владимир Владимирович; Юркин, Юрий Тихонович
The upcoming GAMMA-400 experiment will be implemented aboard the Russian astrophysical space observatory, which will be operating in a highly elliptical orbit over a period of 7 years to provide new data on gamma-ray emissions and cosmic-ray electron + positron fluxes, mainly from the galactic plane, the Galactic Center, and the Sun. The main observation mode will be a continuous point-source mode, with a duration of up to ~100 days. The GAMMA-400 gamma-ray telescope will study high-energy gamma-ray emissions of up to several TeV and cosmic-ray electrons + positrons up to 20 TeV. The GAMMA-400 telescope will have a high angular resolution, high energy and time resolutions, and a very good separation efficiency for separating gamma rays from the cosmic-ray background and the electrons + positrons from protons. A distinctive feature of the GAMMA-400 gamma-ray telescope is its wonderful angular resolution for energies of andgt;30 GeV (0.01° for Eγ = 100 GeV), which exceeds the resolutions of space-based and ground-based gamma-ray telescopes by a factor of 5–10. GAMMA-400 studies can reveal gamma-ray emissions from dark matter particles’ annihilation or decay, identify many unassociated, discrete sources, explore the extended sources’ structures, and improve the cosmic-ray electron + positron spectra data for energies of andgt;30 GeV.
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The beam test of anticoincidence scintillation detector prototype with SiPM readout and perspectives of GRBs studies for space-based gamma-ray telescope GAMMA-400
(2019) Bakaldin, A. V.; Dalkarov, O. D.; Egorov, A. E.; Gusakov, Y. V.; Arkhangelskiy, A. I.; Galper, A. M.; Arkhangelskaja, I. V.; Chasovikov, E. N.; Chernysheva, I. V.; Kheymits, M. D.; Leonov, A. A.; Runtso, M. F.; Yurkin, Y. T.; Архангельский, Андрей Игоревич; Архангельская, Ирина Владимировна; Часовиков, Евгений Николаевич; Чернышева, Ирина Вячеславовна; Хеймиц, Максим Дмитриевич; Леонов, Алексей Анатольевич; Юркин, Юрий Тихонович
© Published under licence by IOP Publishing Ltd.The GAMMA-400 project will be the new generation of satellite gamma-observatory. GAMMA-400 space-based gamma-ray telescope represents the core of the scientific complex intended to perform a search for signatures of dark matter in the cosmic gamma-emission, measurements of diffuse gamma-emission characteristics, investigation of extended and point gamma-ray sources, studying of high energy component of gamma-ray bursts and solar flares emission. Four fast plastic sub-detectors of the gamma-ray telescope are included in fast trigger logic in the main telescope aperture. This aperture expected angular and energy resolution are ∼0.01° and ∼1-2% respectively for gammas with the energy >100 GeV and electron/protons rejection factor ∼5-105. Prototype of anticoincidence detector based on long BC-408 scintillators with SiPM readout for gamma-ray telescope was tested on a 300 MeV secondary positron beam of synchrotron C-25P «PAKHRA» of Lebedev Physical Institute in Russia. The measurement setup, design concepts for the prototype detector and chosen solutions together with some test results are discussed. Two other apertures (additional and lateral) allow analyzing transient events not required precision angular resolution, for examples, GRBs and solar flares. Similar plastics sub-detectors included in their fast trigger logic. Using of all three apertures allows making more effective observations of GRBs (better signal to noise ratio), more detailed study of its high energy afterglow due long term measurements (because of high apogee orbit provides low background variations with time) and detailed analysis of the sources luminosity variability (spectral, angular and temporal).
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Cosmic Rays Investigation by the PAMELA experiment
(2020) Panico, B.; Campana, D.; Osteria, G.; Barbarino, G. C.; Galper, A. M.; Karelin, A. V.; Koldashov, S. V.; Koldobskiy, S.; Yurkin, Y. T.; Malakhov, V.; Leonov, A.; Mayorov, A. G.; Mikhailov, V. V.; Voronov, S. A.; Колдобский, Сергей Александрович; Юркин, Юрий Тихонович; Малахов, Виталий Валерьевич; Леонов, Алексей Анатольевич; Майоров, Андрей Георгиевич; Михайлов, Владимир Владимирович; Воронов, Сергей Александрович
© Published under licence by IOP Publishing Ltd.PAMELA (Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics) is a satellite-borne experiment. It was launched on June 15th 2006 from the Baikonur space centre on board the Russian Resurs-DK1 satellite. For about 10 years PAMELA took data, giving a fundamental contribution to the cosmic ray physics. It made high-precision measurements of the charged component of the cosmic radiation challenging the standard model of the mechanisms of production, acceleration and propagation of cosmic rays in the galaxy and in the heliosphere. PAMELA gave results on different topics on a very wide range of energy. Moreover, the long PAMELA life gives the possibility to study the variation of the proton, electron and positron spectra during the last solar minimum. The time dependence of the cosmic-ray proton and helium nuclei from the solar minimum through the following period of solar maximum activity is currently being studied. Low energy particle spectra were accurately measured also for various solar events that occurred during the PAMELA mission. In this paper a review of main PAMELA results will be reported.
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Организационная единица
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.
Описание
Направления исследований:
-Исследование процессов генерации космических лучей и гамма-квантов в астрофизических объектах
Регистрация потоков и энергетических спектров гамма-квантов на борту космических аппаратов
- Разработка новых методов регистрации элементарных космических частиц
Применение цифровых методов снятия информации с детекторов элементарных частиц и использованием методов искусственного интеллекта для отбора и анализа событий
- Исследование космического пространства
Проведение фундаментальных и прикладных исследований ядерно-физическими методами с использованием автоматических космических аппаратов и пилотируемых орбитальных станций
- Медико-биологические исследования
Изучение влияния космической радиации на организм космонавтов во время длительных орбитальных полётов