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Proceedings Paper

Spectral emissivities and opacities of plasma at laser interaction with targets of various chemical composition
Author(s): Evgeny M. Ivanov; Vladislav B. Rozanov; Galina A. Vergunova
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Paper Abstract

In the present work a theoretical model of plasma absorption and emission is developed and applied to explanation of some experimentally observed spectra from laser-produced plasmas under conditions being of interest for the ICF as well. The targets for ICF contain the layers of various materials: Be, Al, Cu, SiO2, agar (C12H18O9)n, and others. Of interest is the code, calculating the optical characteristics of plasma of a complicated chemical composition in a broad range of plasma conditions (density and temperature). This spectroscopic modeling has been performed by a collisional-radiative model DESNA for non-LTE mixtures involving detailed structure of excited levels of all charge states from a neutral atom to a fully ionized ion. In the paper we present some new results of theoretical investigation of x-ray emission in the conditions close to real experiments on interaction of short and powerful laser pulses with targets. The simulation and available experimental results are in good enough agreement for various target materials (C, Al, Cu).

Paper Details

Date Published: 12 December 2003
PDF: 9 pages
Proc. SPIE 5228, ECLIM 2002: 27th European Conference on Laser Interaction with Matter, (12 December 2003); doi: 10.1117/12.535944
Show Author Affiliations
Evgeny M. Ivanov, Institute for Mathematical Modelling (Russia)
Vladislav B. Rozanov, P.N. Lebedev Physical Institute (Russia)
Galina A. Vergunova, P.N. Lebedev Physical Institute (Russia)

Published in SPIE Proceedings Vol. 5228:
ECLIM 2002: 27th European Conference on Laser Interaction with Matter
Oleg N. Krokhin; Sergey Yu. Gus'kov; Yury A. Merkul'ev, Editor(s)

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