Calculated neutron emission spectrum with knock-on effects for RF heated (

M. Nocente, G. Gorini, J. Källne, M. Tardocchi

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Abstract

The neutron emission from (3He)D plasmas with RF heating is calculated using a model that includes supra-thermal (knock-on) components of the deuteron population. The RF generation of fast 3He ions is described and the knock-on components were determined with the help of newly derived 3He + d scattering cross sections. Results are presented on the neutron emission spectrum and its contributions from different deuteron velocity components. It is shown that knock-on leaves an observable feature in the spectrum with a clear dependence on absorbed RF power. The importance of the nuclear interaction in the elastic cross section is demonstrated. The results represent a step forward in the use of neutron emission spectroscopy to diagnose fusion plasmas with minority supra-thermal components in their fuel ion composition. © 2011 IAEA, Vienna.
Original languageEnglish
Article number063011
Pages (from-to)-
JournalNuclear Fusion
Volume51
Issue number6
DOIs
Publication statusPublished - Jun 2011
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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