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Simulation of laser–plasma interactions with atomic and radiation effects

Published online by Cambridge University Press:  09 March 2009

R. Marchand ,
R. Fedosejevs ,
C. E. Capjack  and
Y. T. Lee
R. Marchand
Affiliation:
Department of Electrical Engineering, University of Alberta, Edmonton, Alberta T6G 2G7Canada
R. Fedosejevs
Affiliation:
Department of Electrical Engineering, University of Alberta, Edmonton, Alberta T6G 2G7Canada
C. E. Capjack
Affiliation:
Department of Electrical Engineering, University of Alberta, Edmonton, Alberta T6G 2G7Canada
Y. T. Lee
Affiliation:
Lawrence Livermore National Laboratory, University of California, Livermore, California94550, USA.
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Abstract

A one-dimensional Lagrangian code is used to model the interaction of laser light with plasma. The equation of state used is a realistic, piecewise analytic fit, which allows simulations starting from normal density and temperature conditions. The atomic physics required in the code (ionization, radiation rate, and opacities) is interpolated from tables generated using a non-LTE hydrogenic atom model. Radiation transport is treated approximately using a new, numerically efficient recursive algorithm. Results from numerical simulations are compared with recent X-ray measurements from Al, Ti, and Fe plasmas. The code is also used to investigate the X-ray conversion efficiency and the effect of radiation transport on the mass ablation rate and ablation pressure.

Type
Research Article
Information
Laser and Particle Beams , Volume 6 , Issue 2 , May 1988 , pp. 183 - 197
Copyright
Copyright © Cambridge University Press 1988

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