Kinetic plasma model

The kinetic plasma susceptibility tensor X_M for a non-relativistic is the sum over contributions from all species

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(148)

X_M^s being itself the sum over contributions from all harmonics numbers n

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(149)

where

\text{[math]}

(150)

with

where I_n ( )
N ∥ is the modified Bessel function of the first kind and Z is the plasma dispersion function [13].