Abstract
Neutron spectroscopy was proposed1 early on in the fusion research as a direct method of ion temperature measurement in deuterium or deuterium-tritium plasmas. If the ion velocity distribution is Maxwellian, the neutron energy spectrum is centered at 14 MeV for the d(t,n)α reaction with a full width at half-maximum ΔEn (in keV) represented by ΔEn ≈ 177Ti 1/2 (1) where Ti is the ion temperature in keV. The ion temperature can be derived from the broadening of the neutrons spectrum using this relation.
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© 1996 Plenum Press, New York
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Nishitani, T., Iguchi, T., Takada, E., Kaneko, Ji., Kasai, S., Matoba, T. (1996). Neutron Spectrometers for ITER. In: Stott, P.E., Gorini, G., Sindoni, E. (eds) Diagnostics for Experimental Thermonuclear Fusion Reactors. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0369-5_51
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DOI: https://doi.org/10.1007/978-1-4613-0369-5_51
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