Numerical model for extraction of ions from plasma

被引：0
|
作者：
M. Turek
A. Pyszniak
A. Drozdziel
J. Sielanko
A. Latuszynski
D. Maczka
Yu. A. Vaganov
Yu. V. Yushkevich
机构：
[1] Instytut Fizyki UMCS,
[2] Instytut Informatyki UMCS,undefined
[3] Instytut Energii Atomowej,undefined
[4] Joint Institute for Nuclear Research,undefined
来源：
Instruments and Experimental Techniques | 2009年 / 52卷
关键词：
29.25.Ni;
D O I：
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学科分类号：
摘要：
The ion-extraction process is investigated using the numerical model of a plasma ion source. The operating characteristics of the ion-optical system, such as the dependence of the plasma meniscus surface and the ion current on the extraction voltage, are found. In particular, it is shown that the ion current-extraction voltage characteristic is represented by the expression I = AU3/4, which differs from the well-known Child-Langmuir formula. Some new characteristics of the ion-optical system—its dynamic perveance and effective emitting area—are introduced.
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页码：90 / 98
页数：8
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