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Problems of measurement of dense plasma heating in laser shock-wave compression

Published online by Cambridge University Press:  01 April 1999

D. BATANI ,
M. KOENIG ,
A. BENUZZI ,
I.K. KRASYUK ,
P.P. PASHININ ,
A.Yu. SEMENOV ,
I.V. LOMONOSOV  and
V.E. FORTOV
D. BATANI
Affiliation:
Universitá degli Studi di Milano, Dipartimento di Fisica, Via Emanueli, 20146 Milano, Italy
M. KOENIG
Affiliation:
LULI, Ecole Polytechnique, 91128 Palaiseau, France
A. BENUZZI
Affiliation:
LULI, Ecole Polytechnique, 91128 Palaiseau, France
I.K. KRASYUK
Affiliation:
General Physics Institute of the Russian Academy of Sciences, 38 Vavilov Street, Moscow 117942, Russia
P.P. PASHININ
Affiliation:
General Physics Institute of the Russian Academy of Sciences, 38 Vavilov Street, Moscow 117942, Russia
A.Yu. SEMENOV
Affiliation:
General Physics Institute of the Russian Academy of Sciences, 38 Vavilov Street, Moscow 117942, Russia
I.V. LOMONOSOV
Affiliation:
High Energy Density Research Center of the Russian Academy of Sciences, 13/19 Izhorskaya Street, Moscow 127412, Russia
V.E. FORTOV
Affiliation:
High Energy Density Research Center of the Russian Academy of Sciences, 13/19 Izhorskaya Street, Moscow 127412, Russia
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Abstract

Experimental results of heating measurements of matter carried out in a study of laser-driven shock waves in aluminum (Batani et al. 1997) are discussed. The measured temporal evolution of the “color” temperature of the rear surface of the target is compared with that computed by a numerical code. It has been established that the target preheating can substantially affect optical signal features recorded from the rear side of the target, and consequently influence upon the accuracy of temperature and pressure measurements of the material behind the shock wave front.

Type
Research Article
Information
Laser and Particle Beams , Volume 17 , Issue 2 , April 1999 , pp. 265 - 273
Copyright
© 1999 Cambridge University Press

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