Study of negative hydrogen ion beam optics using the 3D3V PICmodel

K. Miyamoto, S. Nishioka, I. Goto, Akiyoshi Hatayama, M. Hanada, A. Kojima

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

5 Citations (Scopus)

Abstract

Themechanism of negative ion extraction under real conditions with the complexmagnetic field is studied by using the 3D PIC simulation code. The extraction region of the negative ion source for the negative ion based neutral beam injection system in fusion reactors ismodelled. It is shown that the E x B drift of electrons is caused by themagnetic filter and the electron suppressionmagnetic field, and the resultant asymmetry of the plasmameniscus. Furthermore, it is indicated that that the asymmetry of the plasmameniscus results in the asymmetry of negative ion beam profile including the beam halo. It could be demonstrated theoretically that the E x B drift is not significantly weakened by the elastic collisions of the electrons with neutral particles.

Original languageEnglish
Title of host publication4th International Symposium on Negative Ions, Beams and Sources, NIBS 2014
EditorsWerner Kraus, Paul McNeely
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735412972
DOIs
Publication statusPublished - 2015 Apr 8
Event4th International Symposium on Negative Ions, Beams and Sources, NIBS 2014 - Garching, Germany
Duration: 2014 Oct 62014 Oct 10

Publication series

NameAIP Conference Proceedings
Volume1655
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Symposium on Negative Ions, Beams and Sources, NIBS 2014
CountryGermany
CityGarching
Period14/10/614/10/10

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Miyamoto, K., Nishioka, S., Goto, I., Hatayama, A., Hanada, M., & Kojima, A. (2015). Study of negative hydrogen ion beam optics using the 3D3V PICmodel. In W. Kraus, & P. McNeely (Eds.), 4th International Symposium on Negative Ions, Beams and Sources, NIBS 2014 [050004] (AIP Conference Proceedings; Vol. 1655). American Institute of Physics Inc.. https://doi.org/10.1063/1.4916461