Global Instability Structure in a Linear Beam Confinement System

Kojiro SEKIGUCHI; Takahiro URANO; Shuya IWATA; Gaku SAKAI; Ryo MATSUMOTO; Toshiki TAKAHASHI

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Global Instability Structure in a Linear Beam Confinement System

机译：线性束缚系统中的整体不稳定性结构

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We investigate instabilities of electron beam particles confined in a cylindrical chamber using a 3-dimensional full particle simulation. The global structure of electron beam plasma changes within 1 μs, and deforms to those formed by the instabilities such and the sausage and kink instabilities. The azimuthal mode of the electron density on the midplane of beam plasma is analyzed and the amplitude of mode number of 1 or more increases at 0.2 μs. It was also found that the temporal change of the electron density on the geometric axis is caused by the plasma oscillation.

机译：我们使用三维全粒子模拟研究了局限在圆柱室内的电子束粒子的不稳定性。电子束等离子体的整体结构在1μs内变化，并变形为由不稳定性以及香肠和扭结不稳定性形成的结构。分析了束等离子体的中平面上的电子密度的方位模，并且模数为1或更大的振幅在0.2μs处增加。还发现，在几何轴上的电子密度的时间变化是由等离子体振荡引起的。

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《Plasma and Fusion Research》 |2019年第4期|共1页
作者
Kojiro SEKIGUCHI; Takahiro URANO; Shuya IWATA; Gaku SAKAI; Ryo MATSUMOTO; Toshiki TAKAHASHI;
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中图分类等离子体物理学;
关键词
full particle simulationelectron densityFourier analysisazimuthal modeplasma oscillation;

机译：全粒子模拟电子密度傅里叶分析方位模态等离子体振荡;

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2. Global structure instability of Riemann solutions for general quasilinear hyperbolic systems of conservation laws in the presence of a boundary [J] . Zhi-Qiang Shao Journal of Mathematical Analysis and Applications . 2007,第1期

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7. Global Instability Structure in a Linear Beam Confinement System [O] . Kojiro SEKIGUCHI, Takahiro URANO, Shuya IWATA, 2019

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8. Measurements of Beam-Ion Confinement During Tangential Beam-Driven Instabilities in PBX (Princeton Beta Experiment) [R] . Heidbrink, W. W. , Kaita, R. , Takahashi, H. , 1987

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Global Instability Structure in a Linear Beam Confinement System

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