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The influence of plasma evolution on a kinetic scenario of collisional relaxation of a magnetized plasma

V I Erofeev2023年Plasma Physics and Controlled FusionIF 2.2出版社

For a magnetized plasma, a reduction of the two-time formalism (Erofeev 2019 J. Plasma Phys.85 905850104, Erofeev 2022 Contrib. Plasma Phys.62 e202100140) to a highly informative scenario of redistribution of charged particles in momentum due to Coulomb collisions is reported. The consideration focuses on the standard case of an ideal classical ionized homogeneous plasma. It is found that the leading-order approximation of the scenario is consistent with the well-known generalizations of the Lenard–Balescu equation (Lenard 1960 Ann. Phys.10 390–400, Balescu 1960 Phys. Fluids3 52–63) that take into account the leading magnetic field effect (Rostoker 1960 Phys. Fluids3 922–7, Hassan and Watson 1977 Plasma Phys.19 237–47). A correction to the collision integral of this equation is developed that is due to time variations of plasma parameters.

日本語訳

磁化プラズマに対して、二時間形式(Erofeev 2019 J. Plasma Phys. 85 905850104、Erofeev 2022 Contrib. Plasma Phys. 62 e202100140)の、クーロン衝突による荷電粒子の運動量再分布という情報量の多いシナリオへの簡約が報告される。考察は、標準的な場合である理想的な古典的イオン化均一プラズマに焦点を当てる。このシナリオの最低次近似は、主要な磁場効果を考慮したレナード–バレスク方程式のよく知られた一般化(Rostoker 1960 Phys. Fluids 3 922–7、Hassan and Watson 1977 Plasma Phys. 19 237–47)と一致することが見出される。この方程式の衝突積分に対する、プラズマパラメータの時間変化に起因する補正が導出される。

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