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首页> 外文期刊>Journal of surface investigation: x-ray, synchrotron and neutron techniques >Numerical Simulation of a High-Perveance Ion-Extraction System with a Plasma Emitter
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Numerical Simulation of a High-Perveance Ion-Extraction System with a Plasma Emitter

机译:带有等离子发射器的高性能离子提取系统的数值模拟

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摘要

The cell of a multiaperture three-electrode ion-extraction system (IES) with a plasma ion emitter is numerically simulated within the range of ion current density and accelerating potentials corresponding to gas-discharge ion sources used in technological and space applications (ion thrusters). The formation of the primary ion beam and the configuration of the secondary (charge-exchange) ion flux impinging on the IES electrodes from both the beam volume and the beam-transport (neutralization) region are investigated for different IES geometries. The erosion of the accelerating electrode is estimated.
机译:在技​​术和空间应用中使用的气体放电离子源(离子推进器)对应的离子电流密度和加速电位范围内,对带有等离子体离子发射器的多孔三电极离子提取系统(IES)的电池进行数值模拟。对于不同的IES几何形状,研究了从离子束体积和电子束传输(中和)区域撞击到IES电极上的一次离子束的形成和二次(电荷交换)离子通量的结构。估计加速电极的腐蚀。

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