Development of radio frequency induction plasma generators for neutral beams
作者:
W. F. DiVergilio,
H. Goede,
V. V. Fosnight,
期刊:
Review of Scientific Instruments
(AIP Available online 1986)
卷期:
Volume 57,
issue 7
页码: 1254-1260
ISSN:0034-6748
年代: 1986
DOI:10.1063/1.1138638
出版商: AIP
数据来源: AIP
摘要:
The techniques, operational aspects, and experimental results of a radio frequency induction plasma generator, with an internal rf power coupler, intended for intense neutral beam applications are described. One of the development sources suitable for 10×10‐cm2extraction optics was operated to a deuterium ion current density of 250 mA/cm2, uniform to 5%, over a circular extraction area 15 cm in diameter with a coupled rf power of 20 kW. Temporal fluctuation levels in the extracted ion current were measured to be typically 1% of the dc level. A second developmental source suitable for 10×40‐cm2grid sets was operated to 200 mA/cm2, uniform to ±8% over a 10×40 cm2area, with 40‐kW coupled rf power.
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