Персона: Наумов, Петр 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 метаданныеThe Future Space-Based GAMMA-400 Gamma-Ray Telescope for Studying Gamma and Cosmic Rays(2019) Topchiev, N. P.; Bakaldin, A. V.; Gusakov, Y. V.; Dalkarov, O. D.; Galper, A. M.; Arkhangelskaja, I. V.; Arkhangelskiy, A. I.; Leonov, A. A.; Naumov, P. Y.; Runtso, M. F.; Kheymits, M. D.; Chernysheva, I. V.; Yurkin, Y. T.; Архангельская, Ирина Владимировна; Архангельский, Андрей Игоревич; Леонов, Алексей Анатольевич; Наумов, Петр Юрьевич; Хеймиц, Максим Дмитриевич; Чернышева, Ирина Вячеславовна; Юркин, Юрий Тихонович© 2019, Allerton Press, Inc.Abstract: The future space-based γ-ray telescope GAMMA-400 will be installed on the Navigator platform of the Russian astrophysical observatory. A highly elliptical orbit will allow prolonged (~100 days) continuous observations of many regions of the celestial sphere for 7–10 years. GAMMA-400 will measure fluxes of γ‑ray emission in the energy range of ~20 MeV to several TeV and electrons + positrons to ~20 TeV. The γ-ray telescope will have excellent separation of γ-ray emissions against the background of cosmic rays and electrons + positrons from protons, along with unprecedented angular (~0.01° at Eγ = 100 GeV) and energy (~1% at Eγ = 100 GeV) resolutions 5–10 times better than for the Fermi-LAT and ground-based γ-ray telescopes. GAMMA-400 observations will provide fundamentally new data on discrete sources and spectra of γ-ray emissions and electrons + positrons.
- ПубликацияОткрытый доступNew method of high-energy gamma ray direction reconstruction in multilayered converters(2019) Bakaldin, A. V.; Gusakov, Y. V.; Dalkarov, O. D.; Egorov, A. E.; Kheymits, M. D.; Galper, A. M.; Arkhangelskaja, I. V.; Arkhangelskiy, A. I.; Djivelikyan, E. A.; Leonov, A. А.; Naumov, P. Y.; Runtso, M. F.; Yurkin, Y. T.; Zverev, V. G.; Хеймиц, Максим Дмитриевич; Архангельская, Ирина Владимировна; Архангельский, Андрей Игоревич; Леонов, Алексей Анатольевич; Наумов, Петр Юрьевич; Юркин, Юрий Тихонович© Published under licence by IOP Publishing Ltd.A new method of high-energy gamma ray incident direction reconstruction is developed for gamma-ray detectors with multilayered converters. The method uses data from converter and, if available, from position-sensitive calorimeter to reconstruct an electromagnetic cascade axis and to determine the incident direction of a primary gamma. For the first time to find point of intersection of gamma direction line with convertor plane, median of energy deposit in sensitive plane of convertor is used. Applied, for example, to the GAMMA-400 space-based gamma-ray telescope this method allowed to achieve the angular resolution ∼0.01° at gamma-ray energy of 100 GeV, being much better than accuracy of the past and present space- A nd ground-based experiments. In the algorithm presented, a balance between the angular resolution and the effective area can be found to meet a scientific goal of an experiment.
- ПубликацияОткрытый доступHigh-energy gamma- and cosmic-ray observations with future space-based GAMMA-400 gamma-ray telescope(2019) Topchiev, N. P.; Galper, A. M.; Arkhangelskaja, I. V.; Arkhangelskiy, A. I.; Chernysheva, I. V.; Kheymits, M. D.; Leonov, A. A.; Naumov, P. Y.; Runtso, M. F.; Yurkin, Y. T.; Архангельская, Ирина Владимировна; Архангельский, Андрей Игоревич; Чернышева, Ирина Вячеславовна; Хеймиц, Максим Дмитриевич; Леонов, Алексей Анатольевич; Наумов, Петр Юрьевич; Юркин, Юрий ТихоновичThe future space-based GAMMA-400 gamma-ray telescope will be installed on the Navigator platform of the Russian Astrophysical Observatory. A highly elliptical orbit will provide observations for 7-10 years of many regions of the celestial sphere continuously for a long time ( 100 days). GAMMA-400 will measure gamma-ray fluxes in the energy range from similar to 20 MeV to several TeV and electron + positron fluxes up to similar to 20 TeV. GAMMA-400 will have an excellent separation of gamma rays from the background of cosmic rays and electrons + positrons from protons and an unprecedented angular (similar to 0.01 degrees at E-gamma = 100 GeV) and energy (similar to 1% at E-gamma = 100 GeV) resolutions better than for Fermi-LAT, as well as ground-based facilities, by a factor of 5-10. Observations of GAMMA-400 will provide new fundamental data on discrete sources and spectra of gamma-ray emission and electrons + positrons, as well as the nature of dark matter.
- ПубликацияОткрытый доступInvestigations of SiPM based large scintillation detectors(2019) Egorov, A. E.; Suchkov, S. I.; Topchiev, N. P.; Runtso, M. F.; Arkhangelskaja, I. V.; Arkhangelskiy, A. I.; Chasovikov, E. N.; Galper, A. M.; Leonov, A. A.; Naumov, P. Y.; Naumov, P. P.; Yurkin, Y. T.; Архангельская, Ирина Владимировна; Архангельский, Андрей Игоревич; Часовиков, Евгений Николаевич; Леонов, Алексей Анатольевич; Наумов, Петр Юрьевич; Юркин, Юрий Тихонович© Published under licence by IOP Publishing Ltd.Different types of light concentration for large fast scintillation detectors with silicon photomutipliers as photosensors for the satellite based gamma-ray telescope GAMMA-400 are analysed. Some proposals for their possible implementations are made.
- ПубликацияОткрытый доступSpace-based GAMMA-400 mission for direct gamma- and cosmic-ray observations(2019) Topchiev, N. P.; Bakaldin, A. V.; Dalkarov, O. D.; Egorov, A. E.; Galper, A. M.; Arkhangelskaja, I. V.; Arkhangelskiy, A. I.; Chernysheva, I. V.; Kheymits, M. D.; Leonov, A. А.; Yu, Naumov, P.; Runtso, M. F.; Yurkin, Y. T.; Архангельская, Ирина Владимировна; Архангельский, Андрей Игоревич; Чернышева, Ирина Вячеславовна; Хеймиц, Максим Дмитриевич; Леонов, Алексей Анатольевич; Наумов, Петр Юрьевич; Юркин, Юрий Тихонович© Published under licence by IOP Publishing Ltd. The future space-based GAMMA-400 mission is intended for direct gamma- and cosmic-ray observations in the highly elliptic orbit during 7-10 years. GAMMA-400, currently developing gamma-ray telescope, will observe in the energy range from ∼20 MeV to several TeV some regions of the Universe (such as Galactic Center, Fermi Bubbles, Crab, Cygnus, etc.) with the unprecedented angular (∼0.01° at E γ = 100 GeV) and energy (∼1% at E γ = 100 GeV) resolutions better than the Fermi-LAT, as well as ground gamma-ray telescopes, by a factor of 5-10. GAMMA-400 will also study cosmic rays in the energy range of up to ∼20 TeV due to deep calorimeter (22 r.l. and 53 r.l. for vertical and lateral events, respectively). GAMMA-400 will permit to resolve gamma rays from dark matter particles, identify many discrete sources (many of which are variable), to clarify the structure of extended sources, to specify the data on the diffuse emission. GAMMA-400 will also specify the sources and the spectra of cosmic-ray electrons + positrons.