А. А. Петрухин
A5005180394- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Neutrino Physics Research
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Muon and positron interactions and applications
- Nuclear Physics and Applications
- Gamma-ray bursts and supernovae
- Solar and Space Plasma Dynamics
- Geomagnetism and Paleomagnetism Studies
- High-Energy Particle Collisions Research
- Computational Physics and Python Applications
- Laser-Plasma Interactions and Diagnostics
- Earthquake Detection and Analysis
- Electromagnetic Launch and Propulsion Technology
- Particle accelerators and beam dynamics
- Ionosphere and magnetosphere dynamics
- Superconducting Materials and Applications
- Particle Accelerators and Free-Electron Lasers
- Atomic and Subatomic Physics Research
- Energetic Materials and Combustion
- Nuclear reactor physics and engineering
- Radioactive Decay and Measurement Techniques
- Radiation Therapy and Dosimetry
National Research Nuclear University MEPhI
2015-2024
Institute of Engineering Physics
2001-2023
Russian Academy of Sciences
1998-2021
Institute for Nuclear Research
2021
Lomonosov Moscow State University
2021
Istituto Nazionale di Fisica Nucleare, Sezione di Torino
2021
Budker Institute of Nuclear Physics
2021
Novosibirsk State University
2021
Altai State University
2021
Dubna State University
2018
The cross section for the muon bremsstrahlung process is calculated as a function of nuclear form factor in Born approximation following Bethe and Heitler theory. influence greater than that taken by Christy Kusaka. simple analytical expression effect screening atomic electrons found. decrease upon interpretation some experimental results estimated.
A unique multipurpose Cherenkov water detector, the NEVOD facility, uses quasispherical measuring modules to explore all basic components of cosmic rays on Earth's surface, including neutrinos. Currently, experimental complex includes a calibration telescope system, and coordinate detector. This paper traces development stages NEVOD, examines research directions, presents results obtained, search for solution 'muon puzzle', discusses possible future prospects.
The idea of a novel type detector array is the following: delayed thermal neutrons generated by hadronic component Extensive Air Showers (EAS) can be detected over whole area using special electron-neutron detectors (en-detectors). PRISMA-32 consists 32 en-detectors, deployed 450 m2. En-detectors are able to detect two main EAS components: electromagnetic one in case synchronous passage several charged particles, and through neutron captures. Detectors based on specialized inorganic...
TAIGA stands for ``Tunka Advanced Instrument cosmic ray physics and Gamma Astronomy'' is a project to built complex, hybrid detector system ground-based gamma-ray astronomy from few TeV several PeV, studies 100 1 EeV. will search ``PeVatrons'' (ultra-high energy sources) measure the composition spectrum of rays in knee region (100 TeV–10 PeV) with good resolution high statistics. include Tunka-HiSCORE — an array wide-angle air Cherenkov stations, Imaging Atmospheric Telescopes, particle...
The TAIGA observatory addresses ground-based gamma-ray astronomy at energies from a few TeV to several PeV, cosmic ray physics 100 EeV as well for search axion-like particles, Lorentz violations and another evidence of New Physics. In 2020 year one square kilometer setup should be put in operation.
The physical motivations and advantages of the new gamma-observatory TAIGA (Tunka Advanced Instrument for cosmic ray physics Gamma Astronomy) is presented. array a complex, hybrid detector ground-based gamma-ray astronomy energies from few TeV to several PeV as well studies 100 EeV. will include wide angle Cherenkov TAIGA-HiSCORE with ~5 km2 area, net 16 I ACT telescopes (with FOV about 10x10 degree), muon detectors total area up 2000-3000 m2 radio Tunka-Rex.
The new detecting system of the Cherenkov water detector Unique Scientific Facility "Experimental complex NEVOD" located at ground level is described. During development system, two tasks have been solved: providing a hodoscopic mode for registration single muon tracks in 4π-geometry and calorimetric measurements energy deposit cascades high-multiplicity bundles.
The purposes, tasks and design features of the new measuring system Cherenkov water detector NEVOD are discussed.
The project of the tracking detector designed for a joint operation with Cherenkov water NEVOD and based on drift chambers from neutrino experiment at IHEP accelerator U-70 is presented. aimed solving problem called `muon puzzle' — growing energy excess muon content in EAS comparison contemporary models their development, which was registered various experiments. Joint coordinate-tracking calorimeter will allow to measure groups answer question about reasons flux excess.