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    The Characteristics of Fast Scintillation Detectors of Time-of-Flight and Anticoincidence Systems of Space-Based Gamma-Ray Telescope GAMMA-400 with Silicon Photomultipliers Readout

    The characteristics of the prototype of the scintillation detecting segment of time-of-flight and anticoincidence systems of being developed space-based GAMMA-400 gamma-ray telescope is studied. The amplitude ...

    A. I. Arkhangelskiy, A. M. Galper, I. V. Arkhangelskaja… in Physics of Atomic Nuclei (2023)

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    Cosmophysical Research with GAMMA-400

    The GAMMA-400 gamma-ray telescope is the successor of Soviet and Russian gamma-ray telescopes. GAMMA-400 is being developed for cosmophysical research in accordance with the Russian Federal Space Program 2016–...

    N. P. Topchiev, A. M. Galper, I. V. Arkhangelskaja… in Physics of Atomic Nuclei (2023)

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    The System of Anticoincidence Detectors of Space-Based Gamma-Ray Telescope GAMMA-400: The Characteristics Obtained Using Positron Beam of Synchrotron S-25R “PAKHRA” of the Lebedev Physical Institute, Russian Academy of Sciences

    The space-based gamma-ray telescope must effectively separate photons from charged particles of instrumental background and cosmic rays. It requires that the anticoincidence system of the telescope must have h...

    A. I. Arkhangelskiy, A. M. Galper… in Bulletin of the Russian Academy of Science… (2023)

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    Proton Rejection in the Measurements of High Energy Electrons and Positrons Detected from Lateral Aperture of the GAMMA-400 Gamma-Ray Telescope

    The space observatory GAMMA-400 is processed currently in accordance with the Federal Space Program of the Russian Federation for 2016–2025. The observatory includes a gamma-ray telescope for experimental stud...

    A. A. Leonov, A. M. Galper, N. P. Topchiev… in Bulletin of the Russian Academy of Science… (2023)

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    GAMMA-400 Gamma-Ray Observations in the GeV and TeV Energy Range

    The future space-based GAMMA-400 \(\gamma\) -ray telescope will operate onboard the Russian astroph...

    N. P. Topchiev, A. M. Galper, I. V. Arkhangelskaja… in Physics of Atomic Nuclei (2021)

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    Calibrating the Prototype Calorimeter for the GAMMA-400 γ-Ray Telescope on the Positron Beam at the Pakhra Accelerator

    A prototype of the electromagnetic calorimeter for the GAMMA-400 γ-ray telescope has been calibrated at the Pakhra S-25R electron synchrotron of the Lebedev Physical Institute. The measured energy resolution o...

    S. I. Suchkov, A. I. Arkhangelskiy, V. A. Baskov… in Instruments and Experimental Techniques (2021)

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    The Anticoincidence System of Space-Based Gamma-Ray Telescope GAMMA-400, Test Beam Studies of Anticoincidence Detector Prototype with SiPM Readout

    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 a...

    A. I. Arkhangelskiy, A. M. Galper, I. V. Arkhangelskaja… in Physics of Atomic Nuclei (2020)

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    Gammas and Charged Particles Identification in Lateral and Additional Apertures of GAMMA-400

    The GAMMA-400 (Gamma Astronomical Multifunctional Modular Apparatus) will be a new generation satellite gamma-observatory. The gamma-ray telescope GAMMA-400 consists of the anticoincidence system (top and late...

    I. V. Arkhangelskaja, A. I. Arkhangelskiy, A. M. Galper… in Physics of Atomic Nuclei (2019)

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    Capabilities of the Gamma-400 Gamma-ray Telescope for Observation of Electrons and Positrons in the TeV Energy Range

    The space-based GAMMA-400 gamma-ray telescope will measure the fluxes of gamma rays in the energy range from ∼20 MeV to several TeV and cosmic-ray electrons and positrons in the energy range from several GeV t...

    A. A. Leonov, A. M. Galper, N. P. Topchiev, A. V. Bakaldin… in Physics of Atomic Nuclei (2019)

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    A System for Generating the Trigger Signals of the Spaceborne GAMMA-400 Telescope

    The GAMMA-400 space project is one of the new generation of space observatories designed to search for signs of dark matter in the cosmic gamma emission, and to measure the characteristics of diffuse gamma-ray...

    A. I. Arkhangelskiy, A. M. Galper… in Bulletin of the Russian Academy of Science… (2019)

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    Article

    The Future Space-Based GAMMA-400 Gamma-Ray Telescope for Studying Gamma and Cosmic Rays

    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 obse...

    N. P. Topchiev, A. M. Galper… in Bulletin of the Russian Academy of Science… (2019)

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    GAMMA-400 Project

    Extraterrestrial gamma-ray astronomy is now a source of a new knowledge in the fields of astrophysics, cosmic-ray physics, and the nature of dark matter. The next absolutely necessary step in the development o...

    A. M. Galper, N. P. Topchiev, Yu. T. Yurkin in Astronomy Reports (2018)

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    Detactability of Dark Matter Subhalos by Means of the GAMMA-400 Telescope

    The potential of the planned GAMMA-400 gamma-ray telescope for detecting subhalos of mass between 106M⊙ and 109M⊙ in the Milky Way Galaxy that consist of annihilating dark matter in the form of weakly interacting...

    A. E. Egorov, A. M. Galper, N. P. Topchiev, A. A. Leonov… in Physics of Atomic Nuclei (2018)

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    Precision Measurements of High-Energy Cosmic Gamma-Ray Emission with the GAMMA-400 Gamma-Ray Telescope

    The GAMMA-400 γ-ray telescope installed at the Russian space observatory is intended for precision measurements in the energy range of 20 MeV–1000 GeV of γ-ray emission (with the angular and energy resolutions...

    A. M. Galper, S. I. Suchkov, N. P. Topchiev… in Physics of Atomic Nuclei (2017)

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    Article

    A technique for selecting γ rays with energies above 50 GeV from the background of charged particles in the GAMMA-400 space-based γ-ray telescope

    The task of selecting neutral γ rays from the background of charged particle fluxes, which arises in investigation of high-energy (>50 GeV) cosmic rays, is complicated by the presence of the backsplash effect....

    M. D. Kheymits, A. M. Galper… in Instruments and Experimental Techniques (2016)

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    The GAMMA-400 experiment: Status and prospects

    The development of the GAMMA-400 γ-ray telescope continues. The GAMMA-400 is designed to measure fluxes of γ-rays and the electron-positron cosmic-ray component possibly associated with annihilation or decay o...

    N. P. Topchiev, A. M. Galper, V. Bonvicini… in Bulletin of the Russian Academy of Science… (2015)

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    Article

    Characteristics of the GAMMA-400 gamma-ray telescope for searching for dark matter signatures

    The GAMMA-400 gamma-ray telescope currently under development is designed to measure fluxes of gamma rays and electron-positron cosmic-ray components, which could be associated with the annihilation or decay o...

    A. M. Galper, O. Adriani, R. L. Aptekar… in Bulletin of the Russian Academy of Science… (2013)

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    Method for reconstructing the gamma-ray arrival direction in the converter + calorimeter system

    When designing devices of modern gamma astronomy, one of the most important problems is achieving the maximum possible angular resolution. This study is devoted to the method for reconstructing the arrival dir...

    A. M. Galper, S. V. Borisov, V. G. Zverev… in Bulletin of the Lebedev Physics Institute (2011)

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    Scientific tasks and present status of the GAMMA-400 project

    The GAMMA-400 telescope is designed to investigate discrete high-energy gamma-ray sources in the energy range of 0.1–3000 GeV, to measure the energy spectra of galactic and extragalactic diffuse gammaray emiss...

    A. M. Galper, N. P. Topchiev, R. L. Aptekar… in Bulletin of the Russian Academy of Science… (2011)

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    Advanced GAMMA-400 γ-ray telescope for recording cosmic γ rays with energies up to 3 TeV

    The results of calculation and measurements performed on prototypes of the calorimeter, time-of-flight, and coordinate systems of the advanced GAMMA-400 γ-ray telescope, designed for studying diffuse cosmic γ ...

    V. L. Ginzburg, V. A. Kaplin, M. Ph. Runtso… in Bulletin of the Russian Academy of Science… (2009)

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