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KINETIC THEORY IN THE THERMAL EFFECT IN LASER PLASMA INTERACTION
N. Mirnes and A. H. Belbachir
Laboratory for Radiations Analyses and Applications (LAAR)
Department of Physics, University of Sciences and Technology of Oran M. B. (USTO)
P. O. Box: 1505, El-M’Nouar, Oran, Algeria
A great gradient in the temperature, and the density result from the interaction of the hot plasma with a short laser pulse length. And anomalous absorption of the laser energy is observed , the main mechanism of this absorption is the" inverse Bremsstrahlung absorption"
Our interest in this theoritical studies is to investigate the time and space evolution of the plasma macoscopic properties (such the temperature and the density ) during the interaction .
Using the kinetic theory, the temperature and the density equations are derived , and their profiles are plotted, for an homogenous and inhomogeneous plasma .
A good agreement of our results whith its of the experimental (particularly with an experience in USA in 2002)
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