Numerical simulation of the EEDF and the neutral transport in the DC arc-discharge hydrogen negative ion source for medical use

S. Yamada, H. Etoh, Y. Aoki, M. Yaguchi, Akiyoshi Hatayama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A Multi-cusp DC arc-discharge hydrogen negative ion (H-) source has been developed for proton cyclotron applications. The purpose of this study is to understand the dependency of the H- surface production on the operation parameters and optimize the H- surface production in the source. In this paper, spatial distribution of H atom production due to the H2 dissociation and H atom flux onto the plasma grid (PG), both of which play a key role for the H- surface production, have been calculated by the KEIO-MARC code and the neutral (H2, H) transport code. These simulation results provide useful information for optimization of the H- surface production in the source.

Original languageEnglish
Title of host publicationProceedings of the 17th International Conference on Ion Sources
EditorsEdgar Mahner, Richard Scrivens, Richard Pardo, Jacques Lettry, Bruce Marsh
PublisherAmerican Institute of Physics Inc.
Volume2011
ISBN (Print)9780735417274
DOIs
Publication statusPublished - 2018 Sep 21
Event17th International Conference on Ion Sources 2018 - Geneva, Switzerland
Duration: 2017 Sep 152017 Sep 20

Other

Other17th International Conference on Ion Sources 2018
CountrySwitzerland
CityGeneva
Period17/9/1517/9/20

Fingerprint

arc discharges
hydrogen ions
negative ions
ion sources
direct current
simulation
cusps
cyclotrons
atoms
spatial distribution
grids
dissociation
optimization
protons

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Yamada, S., Etoh, H., Aoki, Y., Yaguchi, M., & Hatayama, A. (2018). Numerical simulation of the EEDF and the neutral transport in the DC arc-discharge hydrogen negative ion source for medical use. In E. Mahner, R. Scrivens, R. Pardo, J. Lettry, & B. Marsh (Eds.), Proceedings of the 17th International Conference on Ion Sources (Vol. 2011). [050017] American Institute of Physics Inc.. https://doi.org/10.1063/1.5053315

Numerical simulation of the EEDF and the neutral transport in the DC arc-discharge hydrogen negative ion source for medical use. / Yamada, S.; Etoh, H.; Aoki, Y.; Yaguchi, M.; Hatayama, Akiyoshi.

Proceedings of the 17th International Conference on Ion Sources. ed. / Edgar Mahner; Richard Scrivens; Richard Pardo; Jacques Lettry; Bruce Marsh. Vol. 2011 American Institute of Physics Inc., 2018. 050017.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yamada, S, Etoh, H, Aoki, Y, Yaguchi, M & Hatayama, A 2018, Numerical simulation of the EEDF and the neutral transport in the DC arc-discharge hydrogen negative ion source for medical use. in E Mahner, R Scrivens, R Pardo, J Lettry & B Marsh (eds), Proceedings of the 17th International Conference on Ion Sources. vol. 2011, 050017, American Institute of Physics Inc., 17th International Conference on Ion Sources 2018, Geneva, Switzerland, 17/9/15. https://doi.org/10.1063/1.5053315
Yamada S, Etoh H, Aoki Y, Yaguchi M, Hatayama A. Numerical simulation of the EEDF and the neutral transport in the DC arc-discharge hydrogen negative ion source for medical use. In Mahner E, Scrivens R, Pardo R, Lettry J, Marsh B, editors, Proceedings of the 17th International Conference on Ion Sources. Vol. 2011. American Institute of Physics Inc. 2018. 050017 https://doi.org/10.1063/1.5053315
Yamada, S. ; Etoh, H. ; Aoki, Y. ; Yaguchi, M. ; Hatayama, Akiyoshi. / Numerical simulation of the EEDF and the neutral transport in the DC arc-discharge hydrogen negative ion source for medical use. Proceedings of the 17th International Conference on Ion Sources. editor / Edgar Mahner ; Richard Scrivens ; Richard Pardo ; Jacques Lettry ; Bruce Marsh. Vol. 2011 American Institute of Physics Inc., 2018.
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