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Evaluation of Fusion Reactivity Enhancement due to Nuclear Plus Interference Scattering in ³He-Containing Deuterium Plasmas

Hideaki MATSUURA, Daisuke UCHIYAMA and Shota SUGIYAMA

Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan

(Received 10 December 2013 / Accepted 1 March 2014 / Published 10 June 2014)

Abstract

An effect of nuclear plus interference (NI) scattering on D(d,n)³He, T(d,n)⁴He and ³He(d,p)⁴He reaction rate coefficients in ³He-containing deuterium plasma is evaluated on the basis of the Boltzmann-Fokker-Planck (BFP) analysis model. An energetic ³He beam and/or externally-fueled low-energy ³He enhance the ³He(d,p)⁴He reaction rate from the value for Maxwellian plasma, and increase energetic proton production rate. The energetic protons create the knock-on tail via NI scattering on the fuel-ion velocity distribution functions. It is shown that a recognizable change in the rate coefficients of fusion reactions due to the knock-on tail formation appears.

Copyright (c) 2014 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

nuclear plus interference scattering, fast-ion velocity distribution function, fusion reaction rate coefficient, ³He-beam injection, Boltzmann-Fokker-Planck model

DOI: 10.1585/pfr.9.3402062

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This paper may be cited as follows:

Hideaki MATSUURA, Daisuke UCHIYAMA and Shota SUGIYAMA, Plasma Fusion Res. 9, 3402062 (2014).