Proton-triton nuclear reaction in ICRF heated plasmas in JET

M.I.K. Santala, M.J. Mantsinen, L. Bertalot, S. Conroy, V. Kiptily, S. Popovichev, A. Salmi, D. Testa, Yu. Baranov, P. Beaumont, P. Belo, J. Brzozowski, M. Cecconello, M. DeBaar, P. DeVries, C. Gowers, J.-M. Noterdaeme, C. Schlatter, S. Sharapov

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Fast protons can react with tritons in an endothermic nuclear reaction which can act as a source of neutrons in magnetically confined fusion plasmas. We have performed an experiment to systematically study this reaction in low tritium concentration (≈1%) plasmas in the Joint European Torus. A linear dependence is found between excess neutron rate and tritium concentration when the DT fusion rate is low. We discuss the properties of the neutron emission, including anisotropy, from the proton-triton reaction in a fusion reactor environment and derive simple models for the calculation of the neutron yield from this reaction in terms of tritium density, fast ion temperature and fast ion energy content. © 2006 IOP Publishing Ltd.
Original languageEnglish
Article number012
Pages (from-to)1233 - 1253
Number of pages21
JournalPlasma Physics and Controlled Fusion
Issue number8
Publication statusPublished - 1 Aug 2006
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

Cite this

Santala, M. I. K., Mantsinen, M. J., Bertalot, L., Conroy, S., Kiptily, V., Popovichev, S., ... Sharapov, S. (2006). Proton-triton nuclear reaction in ICRF heated plasmas in JET. Plasma Physics and Controlled Fusion, 48(8), 1233 - 1253. [012].