Heating of matter in the inner cavity of a target by a pulsed energy source

A two-dimensional model is proposed for describing plasma formation when a pulsed energy source acts on a planar layer of matter which either has free surfaces or is bounded on one or both sides by thermally insulating infinitely heavy walls with apertures for injecting radiation. Conditions are fou...

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Bibliographic Details
Published inQuantum electronics (Woodbury, N.Y.) Vol. 28; no. 12; pp. 1082 - 1088
Main Authors Gus'kov, Sergei Yu, Doskach, I Ya
Format Journal Article
LanguageEnglish
Published United States IOP Publishing 31.12.1998
Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
APERTURES
BEAMS
CONFINEMENT
DENSITY
ELECTROMAGNETIC RADIATION
ENERGY SOURCES
INERTIAL CONFINEMENT
INJECTION
INTAKE
ION BEAMS
LASER CAVITIES
LASER RADIATION
LASERS
OPENINGS
PHYSICAL PROPERTIES
PLASMA
PLASMA CONFINEMENT
RADIATIONS
THERMAL INSULATION
TWO-DIMENSIONAL CALCULATIONS
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Summary:A two-dimensional model is proposed for describing plasma formation when a pulsed energy source acts on a planar layer of matter which either has free surfaces or is bounded on one or both sides by thermally insulating infinitely heavy walls with apertures for injecting radiation. Conditions are found for efficient heating of matter in the inner cavity of a target by a radiation or ion beam under conditions of minimal energy losses associated with hydrodynamic expansion of matter through a radiation-injection aperture. A version of a model is suggested for describing the formation of a plasma in a low-density absorber of the kind used in inertial-confinement thermonuclear fusion targets with internal injection of laser radiation. (interaction of laser radiation with matter. laser plasma)
ISSN:1063-7818
1468-4799
DOI:10.1070/QE1998v028n12ABEH001392