Effect of high energy electrons on H- production and destruction in a high current DC negative ion source for cyclotron

M. Onai, H. Etoh, Y. Aoki, T. Shibata, S. Mattei, S. Fujita, A. Hatayama, J. Lettry

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Recently, a filament driven multi-cusp negative ion source has been developed for proton cyclotrons in medical applications. In this study, numerical modeling of the filament arc-discharge source plasma has been done with kinetic modeling of electrons in the ion source plasmas by the multi-cusp arc-discharge code and zero dimensional rate equations for hydrogen molecules and negative ions. In this paper, main focus is placed on the effects of the arc-discharge power on the electron energy distribution function and the resultant H- production. The modelling results reasonably explains the dependence of the H- extraction current on the arc-discharge power in the experiments.

本文言語English
論文番号02B127
ジャーナルReview of Scientific Instruments
87
2
DOI
出版ステータスPublished - 2016 2 1

ASJC Scopus subject areas

  • 器械工学

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