Abstract

A new formulation of the kinetic (collisionless) electron plasma wave (EPW) damping rate in a relativistic thermal equilibrium plasma is presented, and evaluated for such waves in both forward and backward stimulated Raman scattering (SRS) in laser plasma interactions (LPI) in the temperature regime (5–15keV) of current and near-future deutirium-tritium (DT) fusion plasma experiments. For LPI at typical values of (n0∕ncr), the relativistic damping of the EPW in SRS in this temperature range, particularly for forward SRS, is found to be orders of magnitude smaller than one would predict from a nonrelativistic calculation of Landau damping for those EPW.

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