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, A. 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.
ISBN (Print)9780735417274
DOIs
Publication statusPublished - 2018 Sep 21
Event17th International Conference on Ion Sources 2018 - Geneva, Switzerland
Duration: 2017 Sep 152017 Sep 20

Publication series

NameAIP Conference Proceedings
Volume2011
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

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

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    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 [050017] (AIP Conference Proceedings; Vol. 2011). American Institute of Physics Inc.. https://doi.org/10.1063/1.5053315