Stability study of all-permanent-magnet electron cyclotron resonance ion source

被引：1
|
作者：
Yoshida, K. [1 ]
Nara, T. [1 ]
Saitoh, Y. [1 ]
Yokota, W. [1 ]
机构：
[1] Japan Atom Energy Agcy, Takasaki Adv Radiat Res Inst, Takasaki, Gunma 3701292, Japan
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2010年 / 81卷 / 02期
关键词：
ion sources; plasma radiofrequency heating; plasma sources;
D O I：
10.1063/1.3277193
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Beam intensity fluctuation was investigated using an electron cyclotron resonance ion source of an all-permanent-magnet type under development for highly stable beam intensity. While the source achieved a stability of better than 3.2% by strict regulation of the coolant temperature change within +/- 0.1 degrees C, the intensity varies strongly with intentional changes in the temperature of the plasma chamber coolant. The influence of the temperature on chamber expansion, magnetic field strength, and vacuum was measured or estimated in detail. The result shows that a slight change in vacuum and magnetic field strength has considerable influence on the intensity fluctuation.
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页数：4
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