Reaktionsneutronen als Hilfsmittel der Plasmadiagnostik

Abstract

The neutrons formd—d-reactions in a hot deuterium plasma can be used for plasma diagnostic purposes. The ion velocity distribution is responsible both for the total rate of neutron production and the energy spectrum of the neutrons. Anisotropic velocity distributions give rise to neutron fluxes and neutron energy spectra which are also anisotropic. These effects are discussed for generalized Maxwellian distributions (characterised by different parallel and perpendicular “temperatures”) and for monoenergetic distributions (three-dimensional and two-dimensional), which serve as typical examples.