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Multicusp ion source with external rf antenna for production of protons

被引：15
作者：
Hahto, SK
Hahto, ST
Ji, Q
Leung, KN
Wilde, S
Foley, EL
Grisham, LR
Levinton, FM
机构：
[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[2] Princeton Univ, Plasma Phys Lab, Princeton, NJ 08543 USA
[3] Nova Photon Inc, Princeton, NJ 08540 USA
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2004年 / 75卷 / 02期
关键词：
D O I：
10.1063/1.1642744
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Proton beams are needed in neutral-beam injection for diagnostic development of an internal magnetic field measurement. High proton fraction, low axial energy spread, current density in excess of 30 mA/cm(2), and a parallel ion beam with cw operation are the requirements for the ion source/extraction system. A multicusp-type ion source with an external rf antenna was constructed at Lawrence Berkeley National Laboratory. A proton fraction of 85% and proton current density of 32 mA/cm(2) were achieved at 1.8 kW of rf power. Plasma parameters were measured with a rf compensated Langmuir probe. (C) 2004 American Institute of Physics.
引用
收藏
页码：355 / 359
页数：5
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