Dynamics of ponderomotive ion acceleration in a laser-plasma channel

Journal Article · Wed Apr 15 00:00:00 EDT 2015 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X15040017· OSTI ID:22472360

Kovalev, V. F., E-mail: [e-mail] ^[1]; Bychenkov, V. Yu., E-mail: [e-mail] ^[2]

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1. Russian Academy of Sciences, Keldysh Institute of Applied Mathematics (Russian Federation)
2. Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)

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.

• OSTI ID: 22472360
• Journal Information: Plasma Physics Reports, Vol. 41, Issue 4; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

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