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Thermal focusing instability in spherical targets for laser fusion

Published online by Cambridge University Press:  09 March 2009

J. Sanz
Affiliation:
Escuela Técnica Superior de Ingenieros Aeron´uticos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
F. Ibáñez
Affiliation:
Escuela Técnica Superior de Ingenieros Aeron´uticos, Universidad Politécnica de Madrid, 28040 Madrid, Spain

Abstract

By using a linear analysis, a new type of thermal self-focusing instability without inverse bremsstrahlung absorption is analyzed. In the model it is assumed that part of the light is absorbed only at the critical surface and that the heat conduction is restricted to a layer on the target. Perturbations with wavelengths comparable to target radius are studied.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1990

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