Discriminating Acquisition of 15-MeV Protons from D-3He Fusion Reaction in LHD

Tsuguhiro WATANABE; Junichi MIYAZAWA; Hiroshi YAMADA; Sadayoshi MURAKAMI; Suguru MASUZAKI; Masaki OSAKABE; Mitsutaka ISOBE; Masayuki TOKITANI; Osamu MOTOJIMA

doi:10.1585/pfr.3.058

Rapid Communications

Discriminating Acquisition of 15-MeV Protons from D-³He Fusion Reaction in LHD

Tsuguhiro WATANABE, Junichi MIYAZAWA, Hiroshi YAMADA, Sadayoshi MURAKAMI, Suguru MASUZAKI, Masaki OSAKABE, Mitsutaka ISOBE, Masayuki TOKITANI, Osamu MOTOJIMA

Author information

Tsuguhiro WATANABE
National Institute for Fusion Science, Oroshi, Toki 509-5292, Japan
Junichi MIYAZAWA
National Institute for Fusion Science, Oroshi, Toki 509-5292, Japan
Hiroshi YAMADA
National Institute for Fusion Science, Oroshi, Toki 509-5292, Japan
Sadayoshi MURAKAMI
Kyoto University, Department of Nuclear Engineering, Kyoto 606-8501, Japan
Suguru MASUZAKI
National Institute for Fusion Science, Oroshi, Toki 509-5292, Japan
Masaki OSAKABE
National Institute for Fusion Science, Oroshi, Toki 509-5292, Japan
Mitsutaka ISOBE
National Institute for Fusion Science, Oroshi, Toki 509-5292, Japan
Masayuki TOKITANI
National Institute for Fusion Science, Oroshi, Toki 509-5292, Japan
Osamu MOTOJIMA
National Institute for Fusion Science, Oroshi, Toki 509-5292, Japan

Keywords: LHD, D-³He, 15-MeV proton, nuclear fusion energy

JOURNAL FREE ACCESS

2008 Volume 3 Pages 058

DOI https://doi.org/10.1585/pfr.3.058

Details

Abstract

Discriminating acquisition of 15-MeV protons is possible in LHD D-³He experiments (D⁺ beam to ³He plasma), due to the nonaxisymmetric structure of the magnetic field and the ultra-high energy of the fusion products. The collisionless orbits of D-³He fusion products are studied numerically in the standard magnetic field configuration of LHD. Three sets of fusion product acquisition systems are installed in LHD and numerical computations show the possibility of discriminating between fusion products and plasma particles. The acquisition rate of 15-MeV protons is expected to be in the range of 12 ∼ 28 %.

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