Modeling of neutrals and H- transport in a large negative ion source

N. Kameyama, D. Matsushita, S. Koga, R. Terasaki, A. Hatayama

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

1 Citation (Scopus)

Abstract

A systematic study of the extraction probability of surface-produced H - ions from the ion source has been done with H- and neutral Monte-Carlo transport modeling. Without the effects of the flow velocity of background H+ ions and neutrals, the extraction probability (E.P.) depends strongly on the strength of the magnetic filter field B MF for the low gas pressure condition. On the other hand, the E.P. does not depend so much on BMF for the high gas pressure condition. Neutral transport modeling shows that H2 neutral possibly has a relatively high velocity (∼1km/s). The effect on the E.P., however, is not significant even for the high gas pressure regime.

Original languageEnglish
Title of host publicationSecond International Symposium on Negative Ions, Beams and Sources, NIBS2010
Pages39-47
Number of pages9
DOIs
Publication statusPublished - 2011 Oct 13
Event2nd International Symposium on Negative Ions, Beams and Sources, NIBS2010 - Takayama City, Japan
Duration: 2010 Nov 162010 Nov 19

Publication series

NameAIP Conference Proceedings
Volume1390
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other2nd International Symposium on Negative Ions, Beams and Sources, NIBS2010
CountryJapan
CityTakayama City
Period10/11/1610/11/19

Keywords

  • Extraction
  • Monte-Carlo method
  • Negative ions
  • Neutral flow velocity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Kameyama, N., Matsushita, D., Koga, S., Terasaki, R., & Hatayama, A. (2011). Modeling of neutrals and H- transport in a large negative ion source. In Second International Symposium on Negative Ions, Beams and Sources, NIBS2010 (pp. 39-47). (AIP Conference Proceedings; Vol. 1390). https://doi.org/10.1063/1.3637373