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Coronal fluid-dynamics in laser fusion

Published online by Cambridge University Press:  09 March 2009

Juan R. Sanmartín
Juan R. Sanmartín
Affiliation:
E.T.S.I. Aeronáuticos, Universidad Politécnica, 28040-Madrid
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Abstract

The fluid-dynamics of the corona ejected by laser-fusion targets in the direct-drive approach (thermal radiation and atomic physics unimportant) is discussed. A two-fluid model involves inverse bremsstrahlung absorption, refraction, different ion and electron temperatures with energy exchange, different ion and electron velocities and magnetic field generation, and their effect on ion-electron friction and heat flux. Four dimensionless parameters determine coronal regimes for one-dimensional flows under uniform irradiation. One additional parameter is involved in two-dimensional problems, including the stability of one-dimensional flows, and the smoothing of non-uniform driving.

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Type
Research Article
Information
Laser and Particle Beams , Volume 7 , Issue 2 , May 1989, pp. 219 - 228
Copyright
Copyright © Cambridge University Press 1989

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