Modification of Alpha-Particle Emission Spectrum and Its Effect on Plasma Heating Characteristics in Beam-Injected DT Plasmas
نویسندگان
چکیده
The alpha-particle emission spectrum in beam-injected (non-Maxwellian) deuterium-tritium (DT) burning plasma is examined by solving the Boltzmann-Fokker-Planck (BFP) equations for deuteron, triton and alpha-particle simultaneously. It is shown that owing to the existence of energetic component in fuel-ion energy distribution functions due to neutral-beam injection (NBI) and/or nuclear elastic scattering (NES), the generation rate of the high-energy ( > 3.52MeV ) alpha-particle increases significantly compared with the case for Gaussian distribution. The influence of the broadened energy spectrum on the alpha-heating characteristics is discussed.
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Anisotropic Fusion-product Generation and Emission Spectra in Beam-injected DT Plasmas
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