Active Plasma Resonance Spectroscopy (APRS) denotes a class of diagnostic techniques which utilize the natural ability of plasmas to resonate on or near the electron plasma frequency. One particular class of APRS can be described in an abstract notation based on functional analytic methods in electrostatic approximation. These methods allow for a general solution of the kinetic model in arbitrary geometry. This solution is given as the response function of the probe-plasma system and is defined by the resolvent of an appropriate dynamical operator. The general response predicts an additional damping due to kinetic effects. This manuscript provides the derivation of an explicit response function of the kinetic APRS model in a simple geometry. Therefore, the resolvent is determined by its matrix representation based on an expansion in orthogonal basis functions. This allows to compute an approximated response function. The resulting spectra show clearly a stronger damping due to kinetic effects.
Implicit discretization schemes for full-kinetic ion and drift-kinetic electron simulations
Southwestern Institute of Physics（西南物理研究院）；Department of Physics, University of Colorado at Boulder（科罗拉多大学博尔德分校物理系）；Institute of Plasma Physics, Chinese Academy of Science（中国科学院等离子体物理研究所）
