J. Phys. IV France 10 (2000) Pr5-203-Pr5-206
Stopping power and integral characteristics of real and model plasmasI.M. Tkachenko1, 2, J. Ortner3 and J. Alcober1
1 Department of Applied Mathematics, Polytechnic University, 46022 Valencia, Spain
2 Mediterranean University Center of Science and Technology, 46022 Valencia, Spain
3 Institut für Physik, Humboldt Universität zu Berlin, 10115 Berlin, Germany
The method-of-moments dielectric function is proposed to be employed for the strongly coupled plasmas stopping power studies. Comparative predictions are made on the polarizational energy loss of hydrogen model plasmas simulated with an effective potential. A new sum rule for the plasma heavy ions stopping power projectile velocity distribution is established to be related to the dielectric permeability wavenumber first moment, and is estimated within and beyond the random-phase approximation. This permits for a simple interpretation of the stopping power data. The low-and high-velocity asymptotic forms for the stopping power are analyzed to complement the experimental data.
© EDP Sciences 2000