A 100 keV operation of a large vacuum‐immersed H ion source

Y. Oka, O. Kaneko, Y. Takeiri, K. Tsumori, A. Ando, E. Asano, R. Akiyama, T. Kawamoto, T. Kuroda

研究成果: Article査読

3 被引用数 (Scopus)

抄録

A large vacuum‐immersed H ion source has been operated on the negative‐ion‐based neutral beam teststand. The achieved level of the beam and the pulse duration in beam conditioning were limited by a high‐voltage breakdown in the vacuum vessel. A baffle plate at grounded potential for shielding completely from the charged particles was successful. A beam with an energy of up to 102 keV and the H ion current of 0.55 A were achieved for 0.29 s without the breakdown. The ion current of ∼1.5 A was accelerated in cesium‐seeded operation. The corresponding ion current density was ∼7 mA/cm2. A magnetic filter (as Type I LV magnetic filter) on the plasma electrode was applied. The electron beam component which was extracted from the plasma source together with H ions was found to be very reduced.

本文言語English
ページ(範囲)1029-1031
ページ数3
ジャーナルReview of Scientific Instruments
67
3
DOI
出版ステータスPublished - 1996 3月
外部発表はい

ASJC Scopus subject areas

  • 器械工学

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