Analysis of the double-ion plasma in the extraction region in hydrogen negative ion sources

T. Fukuyama, S. Okuda, A. Fukano, K. Tsumori, H. Nakano, A. Hatayama

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

8 Citations (Scopus)

Abstract

To understand the plasma characteristics in the extraction region of hydrogen negative ion sources is very important for the optimization of H - extraction from the sources. The profile of plasma density in the extraction region is analyzed with a 2D PIC modeling of the NIFS-R&D H - sources. The simulation results make clear the physics process forming a double-ion plasma layer (which consists of positive H+ and negative H- ions) recently observed in the Cs-seeded experiments of the NIFS-R&D source in the vicinity of the extraction hole and the PG (plasma grid).

Original languageEnglish
Title of host publicationThird International Symposium on Negative Ions, Beams and Sources, NIBS 2012
Pages74-80
Number of pages7
DOIs
Publication statusPublished - 2013 Apr 12
Event3rd International Symposium on Negative Ions, Beams and Sources, NIBS 2012 - Jyvaskyla, Finland
Duration: 2012 Sep 32012 Sep 7

Publication series

NameAIP Conference Proceedings
Volume1515
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

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

Keywords

  • Negative ion sources
  • extraction
  • particle-in-cell (PIC)

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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