Model of Development of Knock-On Atom Cascades in Solids

Autor:	V. I. Shmyrev, A. Ya. Ponomarev, A. N. Manvelov, E. V. Metelkin
Rok vydání:	2019
Předmět:	010302 applied physics Physics Scattering Binding energy Condensed Matter Physics Kinetic energy 01 natural sciences Boltzmann equation Cross section (physics) Distribution function Cascade 0103 physical sciences Atom Materials Chemistry Statistical physics 010306 general physics
Zdroj:	Physics of Metals and Metallography. 120:819-823
ISSN:	1555-6190 0031-918X
DOI:	10.1134/s0031918x19060073
Popis:	The nonstationary distribution function characterizing the energy distribution of a cascade of moving atoms (with their multiplication factored in) is determined by solving the kinetic Boltzmann equation. The development of such cascades in materials consisting of identical atoms is examined without regard to the lattice-site binding energy. It is assumed that the interaction cross section is inversely proportional to velocity and the scattering of moving atoms is elastic and spherically symmetric in the center-of-mass system. These simplifying assumptions provide an opportunity to derive simple analytical formulas for the nonstationary distribution function of a cascade of decelerating atoms and analyze its features. The obtained results may also be used to estimate the accuracy of various approximate solutions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f52c89750e3879a35ee6c66a6ce78c3b https://doi.org/10.1134/s0031918x19060073 Zobrazit plný text záznamu Full text from SpringerLink