The effect of transport and extraction of non-uniform surface produced H- in large multi-aperture negative ion sources

S. Fujita; T. Yamamoto; M. Yoshida; M. Kashiwagi; A. Hatayama

doi:10.1063/1.5053314

The effect of transport and extraction of non-uniform surface produced H^- in large multi-aperture negative ion sources

S. Fujita, T. Yamamoto, M. Yoshida, M. Kashiwagi, A. Hatayama

Department of Applied Physics and Physico-Informatics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In order to compare the simulation and the experiments of the extracted H^- beams in JT-60SA negative ion source, an analysis of H^- ion transport has been conducted. It has been shown that, under the present conditions, the calculated beam profile correlates well with the experiments, and the majority of the extracted H^- ions are produced at the surface of the extraction aperture. However, since those H^- ions could contribute to beam halo, a careful evaluation of the beam optics, taking into account more realistic plasma potential will be needed in the future works.

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/10.1063/1.5053314
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

10.1063/1.5053314

Cite this

Fujita, S., Yamamoto, T., Yoshida, M., Kashiwagi, M., & Hatayama, A. (2018). The effect of transport and extraction of non-uniform surface produced H^- in large multi-aperture negative ion sources. In E. Mahner, R. Scrivens, R. Pardo, J. Lettry, & B. Marsh (Eds.), Proceedings of the 17th International Conference on Ion Sources Article 050016 (AIP Conference Proceedings; Vol. 2011). American Institute of Physics Inc.. https://doi.org/10.1063/1.5053314

The effect of transport and extraction of non-uniform surface produced H^- in large multi-aperture negative ion sources. / Fujita, S.; Yamamoto, T.; Yoshida, M. 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. 050016 (AIP Conference Proceedings; Vol. 2011).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Fujita, S, Yamamoto, T, Yoshida, M, Kashiwagi, M & Hatayama, A 2018, The effect of transport and extraction of non-uniform surface produced H^- in large multi-aperture negative ion sources. in E Mahner, R Scrivens, R Pardo, J Lettry & B Marsh (eds), Proceedings of the 17th International Conference on Ion Sources., 050016, 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/10.1063/1.5053314

Fujita S, Yamamoto T, Yoshida M, Kashiwagi M, Hatayama A. The effect of transport and extraction of non-uniform surface produced H^- in large multi-aperture negative ion sources. 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. 050016. (AIP Conference Proceedings). doi: 10.1063/1.5053314

Fujita, S. ; Yamamoto, T. ; Yoshida, M. et al. / The effect of transport and extraction of non-uniform surface produced H^- in large multi-aperture negative ion sources. 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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