Персона: Архангельская, Ирина Владимировна
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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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Ирина Владимировна
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- ПубликацияТолько метаданныеPreliminary Results of Analysis of Properties of Long Gamma-Ray Bursts with High-Energy Components: The Inhomogeneity of Their Source Populations(2021) Arkhangelskaja, I. V.; Архангельская, Ирина Владимировна© 2021, Allerton Press, Inc.Abstract: Sources of gamma-ray bursts (GRBs) are detected at a high redshift z, testifying to their cosmological origin and thus requiring allowance for cosmological dilation in analyzing the distribution of their durations. New parameter Rt, the ratio of the arrival time of a maximum-energy photon to the duration of a burst, is introduced. The new parameter allows cosmological dilation to be ignored and at least two groups of long GRBs to be distinguished. Differences in the dynamics of the formation of high-energy γ-radiation for these groups demonstrates the inhomogeneity of their source populations.
- ПубликацияТолько метаданныеImage Segmentation of Skin Neoplasms Using the Active Contour Method(2022) Voronin, A. E.; Pronichev, A. N.; Nikitaev, V. G.; Solomatin, M. A.; Zanegina, T. P.; Arkhangelskaya, I. V.; Petukhova, A. I.; Bagnova, P. Yu.; Soshnina, A. V.; Проничев, Александр Николаевич; Никитаев, Валентин Григорьевич; Соломатин, Михаил Андреевич; Архангельская, Ирина Владимировна; Петухова, Александра Ильинична
- ПубликацияТолько метаданныеThe Anticoincidence System of Space-Based Gamma-Ray Telescope GAMMA-400, Test Beam Studies of Anticoincidence Detector Prototype with SiPM Readout(2020) Bakaldin, A. V.; Dalkarov, O. D.; Egorov, A. E.; Gusakov, Y. V.; Arkhangelskiy, A. I.; Galper, A. M.; Arkhangelskaja, I. V.; Chernysheva, I. V.; Kheymits, M. D.; Leonov, A. A.; Runtso, M. F.; Yurkin, Y. T.; Архангельский, Андрей Игоревич; Архангельская, Ирина Владимировна; Чернышева, Ирина Вячеславовна; Хеймиц, Максим Дмитриевич; Леонов, Алексей Анатольевич; Юркин, Юрий Тихонович© 2020, Pleiades Publishing, Ltd.Abstract: The GAMMA-400 gamma-ray telescope is planned for the launch at the end of 2026 on the Navigator service platform designed by Lavochkin Association on an elliptical orbit with following initial parameters: an apogee ̴300 000, a perigee ̴500 km, a rotation period ̴7 days and inclination of 51.4̊. The apparatus is expected to operate for more than 5 years, reaching an unprecedented sensitivity for the search of dark matter signatures and the study of the unresolved and so far unidentified gamma-ray sources. The segmented anticoincidence counters surround the converter-tracker and calorimeter of the telescope with the purpose of vetoing to assure a clean track reconstruction and charged particle background suppression. The anticoincidence detector prototype based on long BC-408 scintillator with silicon photomultipliers readout was tested using 300-MeV positron beam of synchrotron C-25P ‘‘PAKHRA’’ of Lebedev Physical Institute. The measurement setup, design concepts for the prototype detector together with test results are discussed.
- ПубликацияТолько метаданныеGamma- and Cosmic-Ray observations with the GAMMA-400 Gamma-Ray telescope(2022) Topchiev, N. P.; Bakaldin, A. V.; Cherniy, R. A.; Gudkova, E. N.; Galper, A. M.; Arkhangelskaja, I. V.; Arkhangelskiy, A. I.; Chernysheva, I. V.; Kheymits, M. D.; Korotkov, M. G.; Leonov, A. A.; Malinin, A. G.; Mikhailov, V. V.; Mikhailova, A. V.; Runtso, M. F.; Yurkin, Y. T.; Архангельская, Ирина Владимировна; Архангельский, Андрей Игоревич; Чернышева, Ирина Вячеславовна; Хеймиц, Максим Дмитриевич; Коротков, Михаил Геннадиевич; Леонов, Алексей Анатольевич; Малинин, Александр Геннадьевич; Михайлов, Владимир Владимирович; Михайлова, Анна Владимировна; Юркин, Юрий Тихонович© 2022 COSPARThe future space-based GAMMA-400 gamma-ray telescope will operate onboard the Russian astrophysical observatory in a highly elliptic orbit during 7 years to observe Galactic plane, Galactic Center, Fermi Bubbles, Crab, Vela, Cygnus X, Geminga, Sun, and other regions and measure gamma- and cosmic-ray fluxes. Observations will be performed in the point-source mode continuously for a long time (∼100 days). GAMMA-400 will measure gamma rays in the energy range from ∼ 20 MeV to several TeV and cosmic-ray electrons + positrons up to several tens TeV. GAMMA-400 instrument will have very good angle and energy resolutions, high separation efficiency of gamma rays from cosmic-ray background, as well as electrons + positrons from protons. The main feature of GAMMA-400 is the unprecedented angular resolution for energies > 30 GeV better than the space-based and ground-based gamma-ray telescopes by a factor of 5–10. GAMMA-400 observations will permit to resolve gamma rays from annihilation or decay of dark matter particles, identify many discrete sources, clarify the structure of extended sources, specify the data on cosmic-ray electron + positron spectra.
- ПубликацияТолько метаданныеCharacteristic for long GRBs with high energy component presence, which not required cosmological corrections(2020) Arkhangelskaja, I. V.; Архангельская, Ирина Владимировна© Published under licence by IOP Publishing Ltd.Several thousands of gamma-ray bursts were observed by various experiments. During several GRBs very high-energy photons were detected both in space and ground-based experiments (up to some tens of GeV and up to some TeV, respectively). Usually 2 classes of bursts are considered: short and long GRBs separated by t90∼2s. Because of several hundreds of GRBs located at high redshift, its sources' origins nature concluding as cosmological. Therefore correction to cosmological dilation of GRBs t90 should be considered during any analysis of bursts duration. Firstly very high-energy component was observed during GRB 970417a: 18 photons with energy ∼650 GeV were registered by Milagrito within t90 interval of this burst. Now several tens of GRBs reveal activity in energy bands up to some tens of GeV and up to some TeV accordingly data of space and ground-based experiments correspondingly. Unfortunately redshift is unknown approximately for half of GRBs with high energy component presence. Here we introduce new parameter Rt is ratio of maximum energy photon arrival time to burst duration and it not required cosmological correction. At least 2 groups of long GRBs could be separated using parameter Rt: for 25% events highest energy gammas detected within t 90 interval, but for other 75% of bursts it registered more than 10 sec. later than one. Moreover, preliminary results of analysis allow concluding 2 subtypes of second group GRBs. For one μ-quantum with maximum energy arrived within t90. For other such photon was registered later than t90. Therefore, the results of preliminary analyses allow conclude long GRBs population inhomogeneity.
- ПубликацияТолько метаданныеCosmophysical Research with GAMMA-400(2023) Topchiev, N. P.; Galper, A. M.; Arkhangelskaja, I. V.; Arkhangelskiy, A. I.; 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; Далькаров, Олег Дмитриевич; Хеймиц, Максим Дмитриевич; Коротков, Михаил Геннадиевич; Леонов, Алексей Анатольевич; Малинин, Александр Геннадьевич; Михайлов, Владимир Владимирович; Юркин, Юрий Тихонович
- ПубликацияОткрытый доступМодель оценки асимметрии пигментного новообразования(2023) Занегина, Т. П.; Никитаев, В. Г.; Проничев, А. Н.; Соломатин, М. А.; Воронин, А. Е.; Архангельская, И. В.; Сошнина, А. В.; Петухова, А. И.; Багнова, П. Ю.; Тамразова, О. Б.; Сергеев, В. Ю.; Сергеев, Ю. Ю.; Архангельская, Ирина Владимировна; Никитаев, Валентин Григорьевич; Проничев, Александр Николаевич; Петухова, Александра Ильинична; Соломатин, Михаил АндреевичВ работе представлены результаты разработки наглядного способа распознавания новообразований кожи на основе модели оценки асимметрии формы пигментного участка патологического разрастания эпидермиса и (или) дермы. В качестве исходных данных рассматривались изображения пигментных новообразований кожи, полученные с помощью дерматоскопа. Для анализа изображений применялась модель расчета коэффициентов асимметрии формы, полученных относительно главных осей инерции новообразования, что позволяет получать независящие от угла поворота изображений значения.
- ПубликацияТолько метаданныеThe Characteristics of Forbush Decreases Based on the Data from AMS-02 Experiment and the Fluxes of Solar Cosmic Rays Based on GOES-15 Data(2025) Dorosheva, D. N.; Arkhangelskaja, I. V.; Borog, V. V.; Архангельская, Ирина Владимировна; Борог, Владимир Викторович
- ПубликацияТолько метаданныеThe Characteristics of Fast Scintillation Detectors of Time-of-Flight and Anticoincidence Systems of Space-Based Gamma-Ray Telescope GAMMA-400 with Silicon Photomultipliers Readout(2023) Arkhangelskiy, A. I.; Galper, A. M.; Arkhangelskaya, I. V.; Dalkarov, O. D.; Korotkov, M. G.; Leonov, A. A.; Kheymits, M. D.; Chasovikov, E. N.; Yurkin, Y. T.; Архангельский, Андрей Игоревич; Архангельская, Ирина Владимировна; Далькаров, Олег Дмитриевич; Коротков, Михаил Геннадиевич; Леонов, Алексей Анатольевич; Хеймиц, Максим Дмитриевич; Часовиков, Евгений Николаевич; Юркин, Юрий Тихонович
- ПубликацияТолько метаданныеA stratospheric and satellite CubeSat format probe for detecting relativistic runaway electron avalanches(2020) Kurmasheva, T. A.; Briukhanov, K. A.; Arkhangelskaja, I. V.; Arkhangelskiy, A. I.; Архангельская, Ирина Владимировна; Архангельский, Андрей Игоревич© Published under licence by IOP Publishing Ltd.In planetary atmospheres, runaway electron avalanches could happen due to large scale electric fields, which accelerate electrons to energies about 0,1-10 MeV. This phenomenon is not fully understood. Nowadays, most of the satellite data is obtained on low orbits. However, runaway breakdown can also occur at altitudes less than 30 km. In this case, most of the radiation is scattered without reaching the satellites on high orbits. The formation of charged particles in the atmosphere can affect the results of numerous experiments. Therefore, it is important to have the most proper model of this phenomenon. Project goal is to create a stratospheric CubeSat format probe capable of detecting these events at an altitude of about 30 km and above. The purpose of the experiment is to observe changes in the fluxes of both high-energy electrons and radiation, as well as an analysis of possible correlations of the measured parameters. We developed a concept of the probe and created a detector prototype, consisting of a thick polystyrene scintillation counter wrapped in mylar and two SiPM SensL MicroSB-30035-X13 readout.