Перегляд за автором "Kholodov, R.I."

Сортувати за: Порядок: Результатів:

  • Accelerating field excitation, occurrence and evolution of electron beam near Jupiter 
    Maslov, V.I.; Fomina, A.P.; Kholodov, R.I.; Levchuk, I.P.; Nikonova, S.A.; Novak, O.P.; Onishchenko, I.N. (Вопросы атомной науки и техники, 2018)
    When electron beam, formed Io-Jupiter penetrates into Jupiter plasma the beam-plasma instability develops. Then electron distribution function becomes wider by excited fields. These electrons cause UV polar light. The ...
  • Account of the longitudinal temperature in cyclotron superradiance 
    Novak, O.P.; Fomina, A.P.; Kholodov, R.I. (Вопросы атомной науки и техники, 2013)
    The phenomenon of cyclotron Dicke superradiance (SR) in the inverted system of nonrelativistic electrons in low density magnetized plasma is considered. It is shown, that account of the longitudinal temperature increases ...
  • Electron-positron pair photo-production with radiation of a photon in magnetic field at nonresonant regime 
    Fomin, P.I.; Kholodov, R.I. (Вопросы атомной науки и техники, 2012)
    Theoretical investigations of quantum electrodynamic processes in strong magnetic field are carried out. Such the processes may occur between colliding heavy ions. Magnetic fields of the nuclei are added and electric fields ...
  • Modeling the interaction of Jupiter's magnetospheric plasma ions with satellite 
    Khelemelia, O.V.; Fomina, A.P.; Novak, O.P.; Kholodov, R.I. (Problems of Atomic Science and Technology, 2023)
    Jupiter’s moons are constantly bombarded by ions produced by the giant planet’s plasma magnetosphere. The influence is considered as one of the main sources of the moons’ atmosphere and surface modification. This investigation ...
  • Photoproduction of the electron-positron pair with photon emission kinematics in strong magnetic field 
    Fomin, P.I.; Kholodov, R.I. (Вопросы атомной науки и техники, 2005)
    The process of the photoproduction of the electron-positron pair with photon emission in strong magnetic field is studied. A kinematics of the process is investigated and threshold values of energies and momenta of particles ...
  • Polarization effects in synchrotron radiation in strong magnetic field 
    Fomin, P.I.; Kholodov, R.I. (Вопросы атомной науки и техники, 2001)
    The electron self-polarization effect is found to be more essential in comparison with quasi-classical approximation. The results of ultra-quantum and quasi-classical calculations for the photon polarization coincide with ...
  • Quantum field methods in the electron cooling 
    Khelemelya, O.V.; Kholodov, R.I. (Вопросы атомной науки и техники, 2013)
    Quantum field methods are proposed to describe the electron cooling process. The influence of the magnetic field and the anisotropy of the temperature distribution of the electron gas are considered in the framework of ...
  • Resonant photoproduction of e⁺e⁻-pair with photon emission in strong magnetic field 
    Fomin, P.I.; Kholodov, R.I. (Вопросы атомной науки и техники, 2007)
    The quantum-electrodynamic process of electron-positron pair production by a photon is considered in a strong external magnetic field. The process is accompanied by emission of the final photon. Kinematics and resonance ...
  • Structures of vortexes near the poles of planets of the solar system 
    Maslov, V.I.; Cassé, M.; Cheremnykh, O.K.; Fomina, A.P.; Grasso, D.; Kholodov, R.I.; Novak, O.P.; Ovsiannikov, R.T. (Problems of Atomic Science and Technology, 2023)
    In the vicinity of the poles of the planets of the solar system, ordered crystals of vortices and intermittency are observed. The formation of vortex structures in the vicinity of the poles of the planets of the solar ...
  • Study of vacuum high-gradient breakdowns from the ion-modified surface of copper electrodes 
    Baturin, V.A.; Karpenko, A.Yu.; Lebedynskyi, S.O.; Roenko, O.Yu.; Eryomin, S.O.; Novak, O.P.; Kholodov, R.I. (Problems of Atomic Science and Technology, 2023)
    The influence on the resistance to high-voltage breakdown of samples irradiated with double-charged copper ions Cu²⁺ with an energy of 300 keV and different irradiation doses was studied. It is experimentally shown that ...
  • The effect of a magnetic field on the motion of electrons for the field emission process description 
    Lebedynskyi, S.O.; Miroshnichenko, V.I.; Kholodov, R.I.; Baturin, V.A. (Вопросы атомной науки и техники, 2015)
    The Schrödinger equation is solved for the wave function of an electron moving in a superposition of external constant and uniform electric and magnetic fields at an arbitrary angle between the field directions. The changing ...
  • The influence of the anisotropic temperature of the electron gas on energy losses of a charged particle in a plasma 
    Khelemelia, O.V.; Kholodov, R.I. (Вопросы атомной науки и техники, 2015)
    Analytical expressions of real and imaginary parts of the dielectric susceptibility of the electron gas with an anisotropic velocity distribution are obtained within the quantum-field method. Energy losses of the projectile ...
  • The influence of the external magnetic field on energy losses of a charged particle in an electron gas 
    Khelemelia, O.V.; Kholodov, R.I. (Вопросы атомной науки и техники, 2017)
    The influence of an external magnetic field and a temperature of an electron gas on energy losses of a charged massive particle is taken into account in the framework of quantum-field approach. The analytical expressions ...
  • Theoretical study of influence of modification of the metal surface on magnitude of the field emission current in gradient-stable accelerating structures 
    Musiienko, I.I.; Kholodov, R.I. (Вопросы атомной науки и техники, 2019)
    Quantum-mechanical problem on electron motion through the model potential barrier of the metal-vacuum system with an additional near-surface dipole layer is considered. Taking into account the continuity conditions of the ...
  • Threshold electron-positron pair production by a polarized electron in a strong magnetic field 
    Novak, O.P.; Kholodov, R.I. (Вопросы атомной науки и техники, 2012)
    Resonant e⁺e⁻–-pair production by an electron in a magnetic field near the process threshold is analytically studied. Using the Nikishov's theorem we estimate the number of events in the magnetic field equivalent to laser ...
  • To the memory of Petr Ivanovich Fomin 
    Storizhko, V.E.; Shul’ga, N.F.; Myroshnichenko, V.I.; Fomin, S.P.; Fomina, A.P.; Gusynin, V.P.; Golod, P.I.; Vil’chinsky, S.I; Shtanov, Yu.V.; Novak, O.P.; Kul’ment’ev, A.I.; Kravchenko, S.M.; Roshchupkin, S.P.; Kholodov, R.I. (Вопросы атомной науки и техники, 2013)
    Petr Ivanovich Fomin, Doctor of Sciences, Professor in theoretical physics, Corresponding Member of the National Academy of Sciences of Ukraine, Head of the Theoretical Physics Department at the Institute of Applied Physics ...