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

doi: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

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

Department of Applied Physics and Physico-Informatics

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	Proceedings of the 17th International Conference on Ion Sources
Editors	Edgar Mahner, Richard Scrivens, Richard Pardo, Jacques Lettry, Bruce Marsh
Publisher	American Institute of Physics Inc.
ISBN (Print)	9780735417274
DOIs	https://doi.org/10.1063/1.5053315
Publication status	Published - 2018 Sept 21
Event	17th International Conference on Ion Sources 2018 - Geneva, Switzerland Duration: 2017 Sept 15 → 2017 Sept 20

Publication series

Name	AIP Conference Proceedings
Volume	2011
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	17th International Conference on Ion Sources 2018
Country/Territory	Switzerland
City	Geneva
Period	17/9/15 → 17/9/20

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.5053315

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

Research output: Chapter in Book/Report/Conference proceeding › Conference 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., 050017, AIP Conference Proceedings, vol. 2011, 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. American Institute of Physics Inc. 2018. 050017. (AIP Conference Proceedings). doi: 10.1063/1.5053315

Yamada, S. ; Etoh, H. ; Aoki, Y. et al. / 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. American Institute of Physics Inc., 2018. (AIP Conference Proceedings).

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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.",

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AB - 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.

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

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