Study of plasma meniscus formation and beam halo in negative hydrogen ion sources

S. Okuda, K. Miyamoto, T. Fukuyama, S. Nishioka, Akiyoshi Hatayama, A. Fukano, M. Hanada, A. Kojima

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

9 Citations (Scopus)

Abstract

A meniscus of plasma-beam boundary in H- ion sources largely affects the extracted H- ion beam optics. Recently it is shown that the beam halo is mainly caused by the meniscus, i.e. ion emissive surface, close to the plasma grid (PG) where its curvature is large. The purpose of this study is to clarify the effect of H- surface production rate on plasma meniscus and beam halo formation with PIC (particle-in-cell) modeling. It is shown that the plasma meniscus and beam halo formation is strongly dependent on the amount of surface produced H- ions.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages107-113
Number of pages7
Volume1515
DOIs
Publication statusPublished - 2013
Event3rd International Symposium on Negative Ions, Beams and Sources, NIBS 2012 - Jyvaskyla, Finland
Duration: 2012 Sep 32012 Sep 7

Other

Other3rd International Symposium on Negative Ions, Beams and Sources, NIBS 2012
CountryFinland
CityJyvaskyla
Period12/9/312/9/7

Fingerprint

menisci
hydrogen ions
negative ions
ion sources
halos
ions
ion beams
grids
curvature
optics
cells

Keywords

  • beam halo
  • negative ion source
  • plasma meniscus

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Okuda, S., Miyamoto, K., Fukuyama, T., Nishioka, S., Hatayama, A., Fukano, A., ... Kojima, A. (2013). Study of plasma meniscus formation and beam halo in negative hydrogen ion sources. In AIP Conference Proceedings (Vol. 1515, pp. 107-113) https://doi.org/10.1063/1.4792776

Study of plasma meniscus formation and beam halo in negative hydrogen ion sources. / Okuda, S.; Miyamoto, K.; Fukuyama, T.; Nishioka, S.; Hatayama, Akiyoshi; Fukano, A.; Hanada, M.; Kojima, A.

AIP Conference Proceedings. Vol. 1515 2013. p. 107-113.

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

Okuda, S, Miyamoto, K, Fukuyama, T, Nishioka, S, Hatayama, A, Fukano, A, Hanada, M & Kojima, A 2013, Study of plasma meniscus formation and beam halo in negative hydrogen ion sources. in AIP Conference Proceedings. vol. 1515, pp. 107-113, 3rd International Symposium on Negative Ions, Beams and Sources, NIBS 2012, Jyvaskyla, Finland, 12/9/3. https://doi.org/10.1063/1.4792776
Okuda S, Miyamoto K, Fukuyama T, Nishioka S, Hatayama A, Fukano A et al. Study of plasma meniscus formation and beam halo in negative hydrogen ion sources. In AIP Conference Proceedings. Vol. 1515. 2013. p. 107-113 https://doi.org/10.1063/1.4792776
Okuda, S. ; Miyamoto, K. ; Fukuyama, T. ; Nishioka, S. ; Hatayama, Akiyoshi ; Fukano, A. ; Hanada, M. ; Kojima, A. / Study of plasma meniscus formation and beam halo in negative hydrogen ion sources. AIP Conference Proceedings. Vol. 1515 2013. pp. 107-113
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