Analysis of H- extraction in the Linac4 negative ion source by 2.5D particle simulation

S. Abe, S. Nishioka, S. Mattei, K. Miyamoto, A. Hatayama, J. Lettry

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

Abstract

The purpose of this study is to investigate the extraction mechanisms of the H- ions in the Linac4 negative ion source by using an improved two-dimensional in real space and three-dimensional in velocity space Particle in Cell (2D3V-PIC) model. In this model, the following collision processes of the surface produced H- (Hsp-) ions have been introduced and the effects of the collisions on H- extraction have been analyzed: elastic (Hsp- - H2) and charge exchange (Hsp- - H). It is shown that the extracted Hsp- current increases due to the flow reversal of the Hsp ions caused by these collisions.

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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    Abe, S., Nishioka, S., Mattei, S., Miyamoto, K., Hatayama, A., & Lettry, J. (2018). Analysis of H- extraction in the Linac4 negative ion source by 2.5D particle simulation. In E. Mahner, R. Scrivens, R. Pardo, J. Lettry, & B. Marsh (Eds.), Proceedings of the 17th International Conference on Ion Sources [080020] (AIP Conference Proceedings; Vol. 2011). American Institute of Physics Inc.. https://doi.org/10.1063/1.5053375