HEAVY-ION ACCELERATION BY NONLINEAR MAGNETOSONIC WAVES IN A 2-ION-SPECIES PLASMA

被引:27
作者
TOIDA, M
OHSAWA, Y
机构
[1] Plasma Science Center, Nagoya University
关键词
HEAVY ION ACCELERATION; 2-ION-SPECIES PLASMA; MAGNETOSONIC WAVE; SOLITON; SHOCK;
D O I
10.1143/JPSJ.64.2036
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The ion dynamics in perpendicular nonlinear magnetosonic waves in a plasma containing two ion species is studied through theory and simulation using a one dimension, electromagnetic particle code with full ion and electron dynamics; in the simulations the density of heavier ions was set to be 10% of that of lighter ions. As in a single-ion-species plasma, some of the light ions can be accelerated by the longitudinal electric field formed in a wave. It is found that the bulk of heavy ions are accelerated by the transverse electric field. For a large-amplitude wave, the maximum speed of heavy ions is about the wave propagation speed, which exceeds the Alfven speed. Theoretical estimates of maximum speeds are given for small- and large-amplitude waves. They are in good agreement with the simulation results.
引用
收藏
页码:2036 / 2046
页数:11
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