Electron density measurement of cesium seeded negative ion source by surface wave probe

被引:8
作者
Kisaki, M. [1 ]
Tsumori, K. [1 ]
Nakano, H. [1 ]
Ikeda, K. [1 ]
Osakabe, M. [1 ]
Nagaoka, K. [1 ]
Shibuya, M. [1 ]
Sato, M. [1 ]
Sekiguchi, H. [1 ]
Komada, S. [1 ]
Kondo, T. [1 ]
Hayashi, H. [1 ]
Asano, E. [1 ]
Takeiri, Y. [1 ]
Kaneko, O. [1 ]
机构
[1] Natl Inst Nat Sci, Natl Inst Fus Sci, Toki, Gifu 5095292, Japan
关键词
PLASMA ABSORPTION PROBE;
D O I
10.1063/1.3671745
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Electron density measurements of a large-scaled negative ion source were carried out with a surface wave probe. By comparison of the electron densities determined with the surface wave probe and a Langmuir probe, it was confirmed that the surface wave probe is highly available for diagnostic of the electron density in H- ion sources. In addition, it was found that the ratio of the electron density to the H- ion density dramatically decreases with increase of a bias voltage and the H- ions become dominant negative particles at the bias voltage of more than 6 V. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3671745]
引用
收藏
页数:4
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