Effects of transverse magnetic field and spatial potential on negative ion transport in negative ion sources

T. Sakurabayashi, A. Hatayama, M. Bacal

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

5 Citations (Scopus)

Abstract

The effects of the magnetic field on the negative ion (H-) extraction in a negative ion source have been studied by means of a two-dimensional electrostatic particle simulation. A particle-in-cell (PIC) model is used which simulates the motion of the charged particles in their self-consistent electric field. Since most electrons are magnetized by the magnetic field, more H- ions arrive instead of electrons in the region close to the plasma grid in order to ensure the plasma neutrality. In the present article, the effect of the electron diffusion across the magnetic field is also taken into account. Although the effects of the electron diffusion en the difference of the dynamics between electrons and H+ ions, the presence of the magnetic field still has a large contribution to the enhancement of the H- extraction.

Original languageEnglish
Title of host publicationPRODUCTION AND NEUTRALIZATION OF NEGATIVE IONS AND BEAMS
Subtitle of host publication10th International Symposium on Production and Neutralization of Negative Ions and Beams
Pages96-106
Number of pages11
DOIs
Publication statusPublished - 2005 Apr 6
Event10th International Symposium on Production and Neutralization of Negative Ions and Beams - Kieve, Ukraine
Duration: 2004 Sep 142004 Sep 17

Publication series

NameAIP Conference Proceedings
Volume763
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other10th International Symposium on Production and Neutralization of Negative Ions and Beams
CountryUkraine
CityKieve
Period04/9/1404/9/17

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Sakurabayashi, T., Hatayama, A., & Bacal, M. (2005). Effects of transverse magnetic field and spatial potential on negative ion transport in negative ion sources. In PRODUCTION AND NEUTRALIZATION OF NEGATIVE IONS AND BEAMS: 10th International Symposium on Production and Neutralization of Negative Ions and Beams (pp. 96-106). (AIP Conference Proceedings; Vol. 763). https://doi.org/10.1063/1.1908286