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Stopping power in nonideal plasmas

Published online by Cambridge University Press:  09 March 2009

K. Morawetz
K. Morawetz
Affiliation:
Max-Planck-Gesellschaft, AG “Theoretische Vielteilchenphysik” an der Universität Rostock, 18055 Rostock, Germany
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Abstract

The stopping power of dense nonideal plasmas is calculated in different many-body approximations. The T-matrix approximation of binary collisions is compared with the random phase approximation (RPA) approximation of dielectric fluctuations. It is found that RPA contributions are more important for dense plasmas at low temperatures. Within a microscopic model, the dynamical evolution of the velocity of the projectile is calculated. It reproduces experimental values well for the stopping of fast heavy ions at times after a pinch discharge. Further improvements due to memory effects and relaxation fields are discussed. A renormalization of the effective energy transfer by memory effects is presented.

Type
Research Article
Information
Laser and Particle Beams , Volume 14 , Issue 4 , December 1996 , pp. 611 - 624
Copyright
Copyright © Cambridge University Press 1996

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References

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