Space-charge lens for focusing a negative-ion beam

被引：0
|
作者：
A. M. Zavalov
V. N. Gorshkov
V. P. Goretskii
I. A. Soloshenko
机构：
[1] National Academy of Sciences of Ukraine,Institute of Physics
来源：
Plasma Physics Reports | 2003年 / 29卷
关键词：
Experimental Data; Focal Length; External Electric Field; Main Operating; Main Operating Condition;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Results are presented from experimental and theoretical studies of a space-charge lens for focusing a negative-ion beam. The space-charge field and the beam ion trajectories are numerically calculated for the lens used in the experiments. The results of calculations are compared with the experimental data. It is shown theoretically and experimentally that the proposed device allows one to achieve the main operating conditions of the space-charge lens: the inertial confinement of positive ions and the removal of electrons by an external electric field. The focusing field of the lens attains ∼100 V/cm, which provides a focal length of <20 cm.
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页码：480 / 484
页数：4
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