Diagnostics of fusion plasma with D(d, γ)

Alessandro Fubini, Marcel Haegi

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Abstract

A novel diagnostic for ion temperature and density is discussed. The diagnostic, based on the detection of the 24-MeV gamma photon from the D(d, γ)4He fusion reaction, appears feasible in reactor-oriented tokamaks. The use of an optimized differential neutron/gamma filter reduces this ratio from 107at the plasma to approx. 1 on the detector. Under these conditions, measurement of the plasma ion temperature and density of a thermonuclear plasma is possible by using a large, high-purity germanium detector as a spectrometer.
Original languageEnglish
Pages (from-to)330 - 333
Number of pages4
JournalFusion Technology
Volume25
Issue number3
DOIs
Publication statusPublished - 1994
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

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