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Simulation of preheating effects in shock wave experiments

Published online by Cambridge University Press:  16 October 2009

J. J. Honrubia ,
R. Dezulian ,
D. Batani ,
S. Bossi ,
M. Koenig ,
A. Benuzzi  and
N. Grandjouan
J. J. Honrubia
Affiliation:
Instituto de Fusión Nuclear, Universidad Politécnica de Madrid, Spain
R. Dezulian
Affiliation:
Universitá degli Studi di Milano and INFM, Italy
D. Batani
Affiliation:
Universitá degli Studi di Milano and INFM, Italy
S. Bossi
Affiliation:
Universitá degli Studi di Milano and INFM, Italy
M. Koenig
Affiliation:
LULI, CNRS, Ecole Polytechnique, France
A. Benuzzi
Affiliation:
LULI, CNRS, Ecole Polytechnique, France
N. Grandjouan
Affiliation:
LPMI, CNRS, Ecole Polytechnique, France
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Extract

We have analyzed the shock wave propagation experiments performed at LULI and presented at ECLIM'94. The targets were aluminium foils with thickness from 5 to 25 μm. Simulations were performed with the SARA-1D multigroup radiation code. We have shown a small level of preheating caused by the absorption of X-rays with energies close to the K-edge of aluminum. Several sets of opacities were used in order to study this effect, including experimental values for cold aluminum. Simulations show a small level of visible emission induced by X-ray preheating before the arrival of the shock.

Type
Research Article
Information
Laser and Particle Beams , Volume 16 , Issue 1: Special Issue: 24th ECLIM , March 1998 , pp. 13 - 20
Copyright
Copyright © Cambridge University Press 1998

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