Zobrazeno 1 - 10
of 102
pro vyhledávání: '"V A Astapenko"'
Autor:
V. A. Astapenko, V. S. Lisitsa
Publikováno v:
Matter and Radiation at Extremes, Vol 9, Iss 5, Pp 057801-057801-6 (2024)
A generalized kinetic model of atomic level populations in an optically dense plasma excited by laser pulses of arbitrary duration is formulated and studied. This model is based on a nonstationary expression for the probability of excitation of an at
Externí odkaz:
https://doaj.org/article/41127d46eddb4537bf67ea744043fbed
Publikováno v:
Matter and Radiation at Extremes, Vol 6, Iss 5, Pp 054404-054404-8 (2021)
On the basis of equations obtained in the framework of second-order quantum-mechanical perturbation theory, the standard approach to the calculation of scattering radiation probability is extended to the case of ultrashort laser pulses. We investigat
Externí odkaz:
https://doaj.org/article/8884377a174f40c3939e790949a4f7fd
Publikováno v:
Matter and Radiation at Extremes, Vol 6, Iss 3, Pp 034001-034001-7 (2021)
The theory of photoionization describing the interaction of x-ray free-electron laser (XFEL) pulses and high-harmonic-generated (HHG) radiation is generalized to ultrashort laser pulses, where the concept of the standard ionization probability per un
Externí odkaz:
https://doaj.org/article/6c92562bfd964771aa3760cb76c0b476
Publikováno v:
Matter and Radiation at Extremes, Vol 5, Iss 6, Pp 064201-064201-20 (2020)
Novel phenomena and methods related to dielectronic capture and dielectronic recombination are studied for non-local thermodynamic equilibrium (LTE) plasmas and for applications to non-LTE ionization balance. It is demonstrated that multichannel auto
Externí odkaz:
https://doaj.org/article/2a0f91020bc749baa6d4b12e3992f0d5
Publikováno v:
Matter and Radiation at Extremes, Vol 5, Iss 6, Pp 064202-064202-15 (2020)
Statistical models combined with the local plasma frequency approach applied to the atomic electron density are employed to study the photoionization cross-section for complex atoms. It is demonstrated that the Thomas–Fermi atom provides surprising
Externí odkaz:
https://doaj.org/article/f558256af34447dfaa46f3ae8d309f81
Autor:
V. A. Astapenko
Publikováno v:
Journal of Experimental and Theoretical Physics. 135:1-8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f6b31f4299a1853d24cec8bf2bec9b2
https://doi.org/10.1134/s106377612206005x
https://doi.org/10.1134/s106377612206005x
Autor:
V. A. Astapenko, E. S. Khramov
Publikováno v:
Proceedings of Moscow Institute of Physics and Technology. 13:76-85
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12234628a15d60aba731c39e48bf7e9b
https://doi.org/10.53815/20726759_2021_13_4_76
https://doi.org/10.53815/20726759_2021_13_4_76
Autor:
V. A. Astapenko, V. S. Lisitsa
Publikováno v:
Atoms, Vol 6, Iss 3, p 38 (2018)
The paper is devoted to the investigation of the absorption of ultrashort laser pulses on atoms in plasmas, accounting for the different broadening mechanisms of atomic resonant transitions. The analysis is made in terms of the absorption probability
Externí odkaz:
https://doaj.org/article/0fcb5295993d4f6088dc119462d09f39
Autor:
V N Astapenko, T L Olenskaja
Publikováno v:
Vrach. 31
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::605fdae43d532f29449a380f04265650
https://doi.org/10.29296/25877305-2020-06-13
https://doi.org/10.29296/25877305-2020-06-13
Publikováno v:
JETP Letters. 108:165-169
The Compton scattering of attosecond X-ray pulses on a hydrogen atom has been studied theoretically in terms of the spectral angular scattering probability during the action of a pulse. The dependence of scattering on the carrier frequency, pulse dur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38953f61ad573761d2ef28170376a490
https://doi.org/10.1134/s002136401815002x
https://doi.org/10.1134/s002136401815002x