Персона:
Калашников, Николай Павлович

Организационные подразделения

Организационная единица

Институт общей профессиональной подготовки (ИОПП)

Миссией Института является: фундаментальная базовая подготовка студентов, необходимая для получения качественного образования на уровне требований международных стандартов; удовлетворение потребностей обучающихся в интеллектуальном, культурном, нравственном развитии и приобретении ими профессиональных знаний; формирование у студентов мотивации и умения учиться; профессиональная ориентация школьников и студентов в избранной области знаний, формирование способностей и навыков профессионального самоопределения и профессионального саморазвития. Основными целями и задачами Института являются: обеспечение высококачественной (фундаментальной) базовой подготовки студентов бакалавриата и специалитета; поддержка и развитие у студентов стремления к осознанному продолжению обучения в институтах (САЕ и др.) и на факультетах Университета; обеспечение преемственности образовательных программ общего среднего и высшего образования; обеспечение высокого качества довузовской подготовки учащихся Предуниверситария и школ-партнеров НИЯУ МИФИ за счет интеграции основного и дополнительного образования; учебно-методическое руководство общеобразовательными кафедрами Института, осуществляющими подготовку бакалавров и специалистов по социо-гуманитарным, общепрофессиональным и естественнонаучным дисциплинам, обеспечение единства требований к базовой подготовке студентов в рамках крупных научно-образовательных направлений (областей знаний).

Фамилия

Калашников

Имя

Николай Павлович

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Теперь показываю 1 - 10 из 16

Только метаданные
Features of the Emission Spectrum during Channeling of Ultrarelativistic Leptons
(2019) Kalashnikov, N. P.; Mazur, E. A.; Калашников, Николай Павлович; Мазур, Евгений Андреевич
© 2019, Pleiades Publishing, Inc.Abstract: The probability of photon emission by a channeled particle is calculated in the nondipole case. The emission of hard photons with energies comparable with the energy of the incident channeled particle is studied. The quasi-Bloch energy spectrum is calculated for an oriented fast charged particle entering a crystal at angles both smaller and larger than the Lindhard angle. The initial and final spectra of the channeled particle belong to different sets of the wavefunctions of the bands corresponding to different energies. The generation of photons by a quantum particle oriented with respect to the crystal and entering the crystal at angles both larger and smaller than the Lindhard angle are considered on the same basis. It is shown that the emission spectrum of hard photons consists of a set of distinct emission lines.
Только метаданные
Non-Dipole Features of the Photon Emission Spectrum of a Fast Oriented Lepton in a Crystal
(2019) Kalashnikov, N. P.; Mazur, E. A.; Калашников, Николай Павлович; Мазур, Евгений Андреевич
© 2019, Pleiades Publishing, Ltd.Abstract: The probability of the non-dipole emission of photons by channeled particle is calculated. The emission of hard photons with an energy comparable with that of the incident channeled particle is studied. The quasi-Bloch energy spectrum of an oriented fast charged particle entering a crystal at an angle smaller and greater than the Lindhard angle is calculated. The initial and final spectra of the channeled particle are described by different sets of band wave functions corresponding to different energies. The processes of photon generation by a quantum particle entering into the crystal at an angle larger and smaller than the Lindhard angle are considered on an equal basis. The spectrum of hard-photon emission is shown to consist of a set of well-observed emission lines.
Только метаданные
Classical and Quantum Description of the Channeling Effect as Mutually Complementary Approximations
(2022) Kalashnikov, N. P.; Olchak, A. S.; Калашников, Николай Павлович; Ольчак, Андрей Станиславович
Только метаданные
On the Channeling Phenomenon as 1D and 2D Atomic Models in the Comoving Reference Frame
(2022) Kalashnikov, N. P.; Olchak, A. S.; Калашников, Николай Павлович; Ольчак, Андрей Станиславович
Abstract: The motion of a channeled particle is conveniently considered in the so-called comoving reference frame, moving along the direction of channeling at a speed equal to the longitudinal component of the channeled-particle speed. In such a system, the motion of the particle is finite and reduced to oscillatory in the one-dimensional potential (in the case of plane channeling) or two-dimensional finite motion in the central field (in the case of axial channeling). Mathematically, in the comoving reference frame, the motion of a channeled particle is described by the relativistic Schrödinger equation, in which the role of mass is performed by the relativistic particle energy E. The channeling phenomenon can be considered as 1D and 2D models of atoms in terms of the motion of an electron inside an atom. By selecting and orienting the target crystal, it is possible to control the potential parameters, making it different from the Coulomb potential acting in a hydrogen atom. By changing the relativistic energy of channeled particles, it is possible to change the number of the allowed quantum energy levels of the limited motion of particles within wide limits. In the case of axial channeling, it is possible to realize almost the entire variety of effects observed in traditional atomic physics for channeled particles: the complex structure of levels and sublevels corresponding to different energies and the quantized momentum of particles in the comoving reference frame; the fine splitting of energy levels due to spin-orbital interaction; splitting of energy levels in a magnetic field (analogue of the Zeeman effect), etc. © 2022, Pleiades Publishing, Ltd.
Только метаданные
Particle Generation in the Corona-Discharge Zone
(2022) Zagaynov, V. A.; Maksimenko, V. V.; Kalashnikov, N. P.; Agranovski, I. E.; Chausov, V. D.; Zagaynov, D. K.; Загайнов, Валерий Анатольевич; Максименко, Владимир Викторович; Калашников, Николай Павлович
Abstract: Experimental data on particle generation in the corona-discharge zone are obtained. The size distribution of these particles is measured as a function of the discharge parameters. The particle-size spectra are shown to slightly depend on the polarity of the corona point and are only determined by the potential difference and current strength. Various materials such as iron, copper, silver, molybdenum, tungsten, and graphite are the objects studied. The measurements are carried out under normal conditions in various gaseous atmospheres such as air, nitrogen, and argon. A theoretical model for the interaction of corona-discharge plasma with a metal surface is developed. The extraction of atoms from lattice sites supposedly occurs as a result of collective excitations of the electron gas in the metals. This theoretical model is based on the resonant excitation of a plasmon in the surface layer of a metal upon the inelastic scattering of charged particles of a corona discharge on the electrons of a metal sample. It is shown using the electrostatic-imaging method that the Coulomb interaction of a negative-charge-density wave on the surface with a surface ion of the crystal lattice is capable of extraction the ion from the metal. The interaction cross section of this process is estimated. These results are in qualitative agreement with the experimental data, which confirms the validity of the chosen interaction model. © 2022, Pleiades Publishing, Ltd.
Только метаданные
Inverse Compton Scattering of Photons and Equivalent Photons on Channeled Particles
(2023) Kalashnikov, N. P.; Olchak, A. S.; Калашников, Николай Павлович; Ольчак, Андрей Станиславович
Только метаданные
Radiation Produced When a Free Electron Is Captured in a Channeled State
(2023) Kalashnikov, N. P.; Olchak, A. S.; Калашников, Николай Павлович; Ольчак, Андрей Станиславович
Только метаданные
On the Possibility of Observing the Effect of Quantization of the Orbital Angular Momentum during the Passage of Laser Radiation through an Optical Fiber
(2023) Kalashnikov, N. P.; Olchak, A. S.; Калашников, Николай Павлович; Ольчак, Андрей Станиславович
Только метаданные
Relationships of Macroscopic Characteristics of a Solid with the Binding Energy of an Ion in a Metal Lattice
(2021) Erokhin, K. M.; Kalashnikov, N. P.; Калашников, Николай Павлович
A correlation between macroscopic parameters, such as the Young's modulus in the Hook law, the sound velocity, and the Debye temperature, and the binding energy of an individual atom is considered. The formula for calculation of elastic deformation modulus is proposed. The relationship between the sound velocity and the binding energy of an individual atom in a solid has been obtained. A simple formula is found for calculation of the sound velocity in a metallic rod. The correlation of the characteristic Debye temperature with the binding energy of an ion in a solid body lattice is proposed.
Только метаданные
Selecting an Adequate Potential and a Way of Calculating the Quantum States of Axially Channeled Electrons at High Energies
(2024) Kalashnikov, N. P.; Olchak, A. S.; Калашников, Николай Павлович; Ольчак, Андрей Станиславович