Study of plasma meniscus formation and beam halo in negative ion source using the 3D3VPIC model

S. Nishioka, K. Miyamoto, I. Goto, Akiyoshi Hatayama, A. Fukano

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

3 Citations (Scopus)

Abstract

In this paper, the effect of the electron confinement time on the plasma meniscus and the fraction of the beam halo is investigated by 3D3V-PIC (three dimension in real space and three dimension in velocity space) (Particle in Cell) simulation in the extraction region of negative ion source. The electron confinement time depends on the characteristic time of electron escape along the magnetic field as well as the characteristic time of diffusion across the magnetic field. Our 3D3V-PIC results support the previous result by 2D3V-PIC results i.e., it is confirmed that the penetration of the plasma meniscus becomes deep into the source plasma region when the effective confinement time is short.

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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    Nishioka, S., Miyamoto, K., Goto, I., Hatayama, A., & Fukano, A. (2015). Study of plasma meniscus formation and beam halo in negative ion source using the 3D3VPIC model. In W. Kraus, & P. McNeely (Eds.), 4th International Symposium on Negative Ions, Beams and Sources, NIBS 2014 [020012] (AIP Conference Proceedings; Vol. 1655). American Institute of Physics Inc.. https://doi.org/10.1063/1.4916421