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A multigroup radiation analysis of the light ion beam energy conversion into X rays

Published online by Cambridge University Press:  09 March 2009

J. J. Honrubia
J. J. Honrubia
Affiliation:
Institute de Fusión Nuclear (DENIM), José Gutiérrez Abascal, 2, 28006-Madrid, Spain
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Abstract

Recently, we have developed a one-dimensional radiation-hydrodynamics code called SARA that implicitly solves the multigroup radiation transport equations. A high-order differencing algorithm as well as multifrequency-grey synthetic acceleration techniques are used to obtain a robust algorithm that can be extensively used for radiation energy transport problems and radiative regimes.

The major goal of writing this code has been to explore the performance of the indirectdrive light ion beam capsules. Numerical results show that the efficiency of the energy conversion into soft X rays and the power flux amplification factor are high enough to efficiently compress the fuel capsule for a wide range of ion beam parameters.

Type
Research Article
Information
Laser and Particle Beams , Volume 8 , Issue 1-2 , January 1990 , pp. 117 - 134
Copyright
Copyright © Cambridge University Press 1990

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