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Title: Dynamics of ponderomotive ion acceleration in a laser-plasma channel

Analytical solution to the Cauchy problem for the kinetic equation describing the radial acceleration of ions under the action of the ponderomotive force of a laser beam undergoing guided propagation in transparent plasma is constructed. Spatial and temporal dependences of the ion distribution function and the integral ion characteristics, such as the density, average velocity, and energy spectrum, are obtained for an axisymmetric laser-plasma channel. The formation of a density peak near the channel boundary and the effect of ion flow breaking for a quasi-stationary laser beam are described analytically.
Authors:
 [1] ;  [2]
  1. Russian Academy of Sciences, Keldysh Institute of Applied Mathematics (Russian Federation)
  2. Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)
Publication Date:
OSTI Identifier:
22472360
Resource Type:
Journal Article
Resource Relation:
Journal Name: Plasma Physics Reports; Journal Volume: 41; Journal Issue: 4; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCELERATION; ANALYTICAL SOLUTION; AXIAL SYMMETRY; CAUCHY PROBLEM; DISTRIBUTION FUNCTIONS; ENERGY SPECTRA; ION DENSITY; IONS; KINETIC EQUATIONS; LASERS; PLASMA; PONDEROMOTIVE FORCE