Estimations of Beam-Beam Fusion Reaction Rates in the Deuterium Plasma Experiment on LHD

• HOMMA Masayuki

  Department of Nuclear Engineering, Kyoto University

• MURAKAMI Sadayoshi

  Department of Nuclear Engineering, Kyoto University

• NUGA Hideo

  Department of Nuclear Engineering, Kyoto University

• YAMAGUCHI Hiroyuki

  Department of Nuclear Engineering, Kyoto University

Abstract

Beam-beam nuclear fusion reactions in the Large Helical Device (LHD) deuterium plasma are investigated by the Global NEoclassical Transport (GNET) code, which can solve the five-dimensional drift kinetic equation using Monte Carlo methods. We evaluate the velocity space distribution of the energetic deuterons to calculate the fusion reaction rates between the beams. The calculated fraction of the beam-beam contribution is approximately 1.3% in the 1 MW heating power case and 6.7% in the 5 MW case, which would not be negligible. The beam-beam fusion rate depends on the square of the beam density and on the direction of the injected beams. When both the co- and counter-tangential beams are injected simultaneously, the synergetic beam-beam reaction rates can be approximately 2.9 times larger than the co-beamline contribution alone because of an increase in the relative velocity.

Journal

• Plasma and Fusion Research

  Plasma and Fusion Research 11 (0), 2403109-2403109, 2016

  The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

• LHD
• deuterium experiment
• NBI heating
• beam-beam fusion reaction
• GNET

Details

• CRID: 1390282680229948160
• NII Article ID: 130005395267
• NII Book ID: AA12346675
• DOI: 10.1585/pfr.11.2403109
• ISSN: 18806821
• HANDLE: 10655/00013315
• Web Site: https://nifs-repository.repo.nii.ac.jp/records/11386
• Web Site: https://www.jstage.jst.go.jp/article/pfr/11/0/11_2403109/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed