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Radiation reabsorption in a laser-produced plasma

Published online by Cambridge University Press:  09 March 2009

W. Brunner ,
R. W. John ,
H. Paul  and
H. Steudel
R. W. John
Affiliation:
Zentralinstitut für Optik und Spektroskopie der Akademie der Wissenschaften der DDR, Rudower Chaussee 6, 1199 Berlin, German Democratic Republic
H. Paul
Affiliation:
Zentralinstitut für Optik und Spektroskopie der Akademie der Wissenschaften der DDR, Rudower Chaussee 6, 1199 Berlin, German Democratic Republic
H. Steudel
Affiliation:
Zentralinstitut für Optik und Spektroskopie der Akademie der Wissenschaften der DDR, Rudower Chaussee 6, 1199 Berlin, German Democratic Republic
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Abstract

Taking into account the emission and absorption of resonance radiation in a recombining laser-produced plasma of intermediate density, the system of rate equations for the population densities coupled with the radiative transfer equation is approximately treated. In the case of spatially varying absorption we derive an approximate form of the rate equation determining the population density of the upper resonance level. By applying this relation to an axially symmetric plasma a simple formula that describes the effect of radiation reabsorption on the spatial behaviour of the population density is obtained.

Type
Research Article
Information
Laser and Particle Beams , Volume 6 , Issue 4 , November 1988 , pp. 723 - 729
Copyright
Copyright © Cambridge University Press 1988

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