Development of large current negative ion source for LHD neutral injection

O. Kaneko, A. Ando, Y. Oka, Y. Takeiri, K. Tsumori, R. Akiyama, T. Kawamoto, T. Kuroda, H. Kojima, T. Okuyama, Y. Yamashita

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

Abstract

The R&D program on a large current negative ion source has been carried out at National Institute for Fusion Science for Large Helical Device Project. So far a 1/3-scaled model ion source has been examined. By seeding a small amount of cesium in discharge, we obtained a total current of 8.5 A with the extracting energy of 40 keV. 1.2 A of high density negative ion beam was obtained from the restricted area of the source with the current density of 54 mA/cm2. An engineering test of vacuum-immersed source has also been performed.

Original languageEnglish
Title of host publicationProceedings - Symposium on Fusion Engineering
PublisherPubl by IEEE
Pages462-465
Number of pages4
ISBN (Print)0780314131
Publication statusPublished - 1993 Dec 1
Externally publishedYes
EventProceedings of the 15th IEEE/NPSS Symposium on Fusion Engineering - Hyannis, MA, USA
Duration: 1993 Oct 121993 Oct 12

Publication series

NameProceedings - Symposium on Fusion Engineering
Volume1

Other

OtherProceedings of the 15th IEEE/NPSS Symposium on Fusion Engineering
CityHyannis, MA, USA
Period93/10/1293/10/12

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

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