TY - JOUR

T1 - SPATIAL DISTRIBUTION OF ENERGY RELEASE DURING PROPAGATION OF FAST ELECTRON BEAM IN THE AIR

AU - Sukhomlinov, V. S.

AU - Mustafaev, A. S.

PY - 2016

Y1 - 2016

N2 - The paper focuses on development of the analytical theory to assess spatial distribution of energy released during propagation of the fast electron beam in a gas, in particular in the air at electron energies of 1400 keV. An approach adopted by authors [2, 3] to study inelastic deceleration of electrons in the air is further developed here. As the inelastic interaction in most cases leads to energy relaxation while elastic interaction causes distribution isotropization over directions, the first task solved in the paper is finding the electron distribution function including only elastic collisions. In the final part of this paper an analytical solution to this task is presented with account of both types of electron deceleration in the air.The calculations show that when elastic collisions are taken into account this leads to increased spatial density of energy release and to narrowing of the primary energy release region of the fast electrons, as compared to calculations accounting for only inelastic deceleration.

AB - The paper focuses on development of the analytical theory to assess spatial distribution of energy released during propagation of the fast electron beam in a gas, in particular in the air at electron energies of 1400 keV. An approach adopted by authors [2, 3] to study inelastic deceleration of electrons in the air is further developed here. As the inelastic interaction in most cases leads to energy relaxation while elastic interaction causes distribution isotropization over directions, the first task solved in the paper is finding the electron distribution function including only elastic collisions. In the final part of this paper an analytical solution to this task is presented with account of both types of electron deceleration in the air.The calculations show that when elastic collisions are taken into account this leads to increased spatial density of energy release and to narrowing of the primary energy release region of the fast electrons, as compared to calculations accounting for only inelastic deceleration.

KW - deceleration of electron beam with energy of I to 100keV in a gas

KW - elastic and inelastic interactions of electrons

KW - energy and momentum relaxation

KW - electron velocity distribution function

KW - Boltzmann kinetic equation

KW - numerical simulation based on Monte Carlo method

U2 - 10.18454/PMI.2016.4.611

DO - 10.18454/PMI.2016.4.611

M3 - статья

VL - 220

SP - 611

EP - 621

JO - Journal of Mining Institute

JF - Journal of Mining Institute

SN - 2411-3336

ER -