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arXiv 1702.00237physics.plasm-ph
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电子回旋共振离子源中电子动力学的若干问题

Some Aspects of Electron Dynamics in Electron Cyclotron Resonance Ion Sources

V. Mironov, S. Bogomolov, A. Bondarchenko, A. Efremov, V. Loginov

摘要:

利用Particle-In-Cell程序结合离子动力学的模拟,对电子回旋共振离子源中的电子动力学进行了数值模拟。平均电子能量被发现是70千电子伏左右,接近的值是来自X射线发射的源的光谱。电子寿命由电离碰撞中产生的低能电子的损失定义;损失由电子加热速率调节,这取决于微波电场的大小。模拟了离子约束随微波电场和气流变化的变化。讨论了电子动力学对余辉和双频加热效应的影响。

英文摘要:

Electron dynamics in Electron Cyclotron Resonance Ion Source is numerically simulated by using Particle-In-Cell code combined with simulations of the ion dynamics. Mean electron energies are found to be around 70 keV close to values that are derived from spectra of X-ray emission out of the source. Electron life time is defined by losses of low-energy electrons created in ionizing collisions; the losses are regulated by electron heating rate, which depends on magnitude of the microwave electric field. Changes in ion confinement with variations in the microwave electric field and gas flow are simulated. Influence of electron dynamics on the afterglow and two-frequency heating effects is discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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