Research and development activities on negative ion sources

K. Tsumori; Y. Takeiri; O. Kaneko; M. Osakabe; A. Ando; K. Ikeda; K. Nagaoka; H. Nakano; E. Asano; M. Shibuya; M. Sato; T. Kondo; M. Komada

doi:10.13182/FST10-A10835

Research and development activities on negative ion sources

K. Tsumori, Y. Takeiri, O. Kaneko, M. Osakabe, A. Ando, K. Ikeda, K. Nagaoka, H. Nakano, E. Asano, M. Shibuya, M. Sato, T. Kondo, M. Komada

ENG - Electrical Engineering

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

The research and development (R&D) activity on the negative ion sources at the National Institute for Fusion Science is described. During the R&D period from 1989 to 1998, intensive experimental investigations were carried out at a test stand with three sizes of ion source, 1/6, 1/3, and full size. Although comprehensive research had been carried out, there remained some problems on the Large Helical Device (LHD) beamlines. To resolve those problems, the ion sources and beamlines have been improved in several successive steps since the beam injection experiment of LHD started. Over the past decade, the injection energy, power, and reliability have been increased; the maximum energy now exceeds the 180-keV design value and the maximum injected powers reach 6.8 and 5.5 MW from beamlines 1 and 2, respectively.

Original language	English
Pages (from-to)	489-496
Number of pages	8
Journal	Fusion Science and Technology
Volume	58
Issue number	1
DOIs	https://doi.org/10.13182/FST10-A10835
Publication status	Published - 2010 Jan 1

Keywords

Hydrogen
LHD
Negative ion source
Neutral beam injection

ASJC Scopus subject areas

Civil and Structural Engineering
Nuclear and High Energy Physics
Nuclear Energy and Engineering
Materials Science(all)
Mechanical Engineering

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abstract = "The research and development (R&D) activity on the negative ion sources at the National Institute for Fusion Science is described. During the R&D period from 1989 to 1998, intensive experimental investigations were carried out at a test stand with three sizes of ion source, 1/6, 1/3, and full size. Although comprehensive research had been carried out, there remained some problems on the Large Helical Device (LHD) beamlines. To resolve those problems, the ion sources and beamlines have been improved in several successive steps since the beam injection experiment of LHD started. Over the past decade, the injection energy, power, and reliability have been increased; the maximum energy now exceeds the 180-keV design value and the maximum injected powers reach 6.8 and 5.5 MW from beamlines 1 and 2, respectively.",

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T1 - Research and development activities on negative ion sources

AU - Tsumori, K.

AU - Takeiri, Y.

AU - Kaneko, O.

AU - Osakabe, M.

AU - Ando, A.

AU - Ikeda, K.

AU - Nagaoka, K.

AU - Nakano, H.

AU - Asano, E.

AU - Shibuya, M.

AU - Sato, M.

AU - Kondo, T.

AU - Komada, M.

PY - 2010/1/1

Y1 - 2010/1/1

N2 - The research and development (R&D) activity on the negative ion sources at the National Institute for Fusion Science is described. During the R&D period from 1989 to 1998, intensive experimental investigations were carried out at a test stand with three sizes of ion source, 1/6, 1/3, and full size. Although comprehensive research had been carried out, there remained some problems on the Large Helical Device (LHD) beamlines. To resolve those problems, the ion sources and beamlines have been improved in several successive steps since the beam injection experiment of LHD started. Over the past decade, the injection energy, power, and reliability have been increased; the maximum energy now exceeds the 180-keV design value and the maximum injected powers reach 6.8 and 5.5 MW from beamlines 1 and 2, respectively.

AB - The research and development (R&D) activity on the negative ion sources at the National Institute for Fusion Science is described. During the R&D period from 1989 to 1998, intensive experimental investigations were carried out at a test stand with three sizes of ion source, 1/6, 1/3, and full size. Although comprehensive research had been carried out, there remained some problems on the Large Helical Device (LHD) beamlines. To resolve those problems, the ion sources and beamlines have been improved in several successive steps since the beam injection experiment of LHD started. Over the past decade, the injection energy, power, and reliability have been increased; the maximum energy now exceeds the 180-keV design value and the maximum injected powers reach 6.8 and 5.5 MW from beamlines 1 and 2, respectively.

KW - Hydrogen

KW - LHD

KW - Negative ion source

KW - Neutral beam injection

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DO - 10.13182/FST10-A10835

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EP - 496

JO - Fusion Science and Technology

JF - Fusion Science and Technology

SN - 1536-1055

IS - 1

ER -

Research and development activities on negative ion sources

Abstract

Keywords

ASJC Scopus subject areas

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