磁気プラズマの衝撃項に依る不安定性

概要

論文の詳細を見る
The dispersion laws for the waves propagating in a magnetoactive plasma are obtained, using the Boltzmann equation with a collision term representative of isotropic, recoilless, elstic, binary scattering of the electrons. In the work, the two cases (I) M; k||Bo and (II); k1Bo are studied, where k and Bo are the wave vector and the uniform external magnetic field. Assuming a δ-function for the velocity distribution function the dispersion laws for a long wavelength limit are clasified as follows : A……ω (ω+iv) 2=ωp2 (ω+iv-iV/3·dv/dV) B……ω (ω±ωc+iv) 2=ωp2 (ω±ωc+iv-iV/3·dv/dV) where ωc, ωp and v are the cyclotron, the plasma, the collision frequency respectively. After some calculations under the assumption v (V) =const×Vh, it is found that the initial disturbance grows for h>3 and Im (ω) attains its maximum value at Re (ω) =ωc.
社団法人プラズマ・核融合学会の論文