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R. M. Magee and colleagues report the first measurements of proton-boron fusion in a magnetically confined plasma, a reaction that is attractive for energy but technically hard. The fuels are abundant, non-toxic and non-radioactive, and the reaction makes no neutrons, only helium. In the Large Helical Device, boron powder injected at the plasma edge accumulated in the core. Three 2 MW, 160 kV hydrogen neutral beams supplied well-confined, high-energy protons to react with it. A custom detector counted the MeV alpha particles, giving a fusion rate in very good relative agreement with calculations.

First measurements of p11B fusion in a magnetically confined plasma

  1. R. M. Magee(Author)
  2. K. Ogawa(Author)
  3. T. Tajima(Author)
  4. I. Allfrey(Author)
  5. H. Gota(Author)
  6. P. McCarroll(Author)
  7. S. Ohdachi(Author)
  8. M. Isobe(Author)
  9. S. Kamio(Author)
  10. V. Klumper(Author)
  11. H. Nuga(Author)
  12. M. Shoji(Author)
  13. S. Ziaei(Author)
  14. M. W. Binderbauer(Author)
  15. M. Osakabe(Author)

Publication and identifiers

Work type
Paper
Year
2023

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Recorded rights status
Open license
Rights holder
Springer Science and Business Media LLC

Citation fields

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Original title
First measurements of p11B fusion in a magnetically confined plasma
Attribution
  1. R. M. Magee(Author)
  2. K. Ogawa(Author)
  3. T. Tajima(Author)
  4. I. Allfrey(Author)
  5. H. Gota(Author)
  6. P. McCarroll(Author)
  7. S. Ohdachi(Author)
  8. M. Isobe(Author)
  9. S. Kamio(Author)
  10. V. Klumper(Author)
  11. H. Nuga(Author)
  12. M. Shoji(Author)
  13. S. Ziaei(Author)
  14. M. W. Binderbauer(Author)
  15. M. Osakabe(Author)
Year
2023