Study of H- production in DC H- source of medical cyclotron

Haruhiko Etoh, Moriaki Onai, Yasushi Aoki, Hitoshi Mitsubori, Yoshihiko Arakawa, Junji Sakuraba, Takanori Kato, Toshinori Mitsumoto, Satoru Yajima, Takanori Shibata, Akiyoshi Hatayama, Yoshikazu Okumura

Research output: Contribution to journal › Article

3 Citations (Scopus)

Abstract

A filament driven multi-cusp negative hydrogen ion source has been developed for proton cyclotrons. In order to increase the H- beam current, the dependences of H- beam current on various design/operating parameters has been studied experimentally and numerically. In this paper, the effects of arc-discharge voltage and current on H- production via the volume production process are investigated by three-dimensional kinetic modeling of electrons in the source plasma and zero-dimensional rate equations. This numerical analysis reproduces the experimental results of H- beam current dependence on the arc-discharge condition, and also gives reasonable explanations for their characteristics.

Original languageEnglish
Article number2406063
JournalPlasma and Fusion Research
Volume11
Issue number1
DOIs
Publication statusPublished - 2016

Fingerprint

beam currents
cyclotrons
direct current
arc discharges
hydrogen ions
cusps
negative ions
ion sources
numerical analysis
filaments
protons
kinetics
electric potential
electrons

Keywords

  • EEDF
  • KEIO-MARC code
  • Medical cyclotron
  • Negative hydrogen ion source

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Etoh, H., Onai, M., Aoki, Y., Mitsubori, H., Arakawa, Y., Sakuraba, J., ... Okumura, Y. (2016). Study of H- production in DC H- source of medical cyclotron. Plasma and Fusion Research, 11(1), [2406063]. https://doi.org/10.1585/pfr.11.2406063

Study of H- production in DC H- source of medical cyclotron. / Etoh, Haruhiko; Onai, Moriaki; Aoki, Yasushi; Mitsubori, Hitoshi; Arakawa, Yoshihiko; Sakuraba, Junji; Kato, Takanori; Mitsumoto, Toshinori; Yajima, Satoru; Shibata, Takanori; Hatayama, Akiyoshi; Okumura, Yoshikazu.

In: Plasma and Fusion Research, Vol. 11, No. 1, 2406063, 2016.

Research output: Contribution to journal › Article

Etoh, H, Onai, M, Aoki, Y, Mitsubori, H, Arakawa, Y, Sakuraba, J, Kato, T, Mitsumoto, T, Yajima, S, Shibata, T, Hatayama, A & Okumura, Y 2016, 'Study of H- production in DC H- source of medical cyclotron', Plasma and Fusion Research, vol. 11, no. 1, 2406063. https://doi.org/10.1585/pfr.11.2406063
Etoh H, Onai M, Aoki Y, Mitsubori H, Arakawa Y, Sakuraba J et al. Study of H- production in DC H- source of medical cyclotron. Plasma and Fusion Research. 2016;11(1). 2406063. https://doi.org/10.1585/pfr.11.2406063
Etoh, Haruhiko ; Onai, Moriaki ; Aoki, Yasushi ; Mitsubori, Hitoshi ; Arakawa, Yoshihiko ; Sakuraba, Junji ; Kato, Takanori ; Mitsumoto, Toshinori ; Yajima, Satoru ; Shibata, Takanori ; Hatayama, Akiyoshi ; Okumura, Yoshikazu. / Study of H- production in DC H- source of medical cyclotron. In: Plasma and Fusion Research. 2016 ; Vol. 11, No. 1.
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