Files

Abstract

We present a theory of electrostatic fluctuations in two-component plasmas where electrons and ions are described by Maxwellian distribution functions at unequal temperatures. Based on the exact solution of the Landau kinetic equation, that includes electron-electron, electron-ion, and ion-ion collision integrals, the dynamic form factor, $S\left(\vec{k},\omega\right)$, is derived for weakly coupled plasmas. The collective plasma responses at ion-acoustic, Langmuir, and entropy mode resonances are described for arbitrary wave numbers and frequencies in the entire range of plasma collisionality. The collisionless limit of $S\left(\vec{k},\omega\right)$ and the strong-collision result based on the fluctuation-dissipation theorem and classical transport at $T_e=T_i$ are recovered and discussed. Results of several Thomson scattering experiments in the broad range of plasma parameters are described and discussed by means of our theory for $S\left(\vec{k},\omega\right)$.

Details

PDF

Statistics

from
to
Export
Download Full History