Modification of alpha-particle emission spectrum and its verification scenario using 9be+α reaction in beam-injected dt plasmas

Hideaki Matsuura; Yasuyuki Nakao

doi:10.13182/FST09-A8886

Modification of alpha-particle emission spectrum and its verification scenario using ⁹be+α reaction in beam-injected dt plasmas

Hideaki Matsuura, Yasuyuki Nakao

Nuclear Energy Systems

Research output: Contribution to journal › Article › peer-review

Abstract

The alpha-particle emission spectrum in beam-injected deuterium-tritium (DT) 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 fraction of the energetic (> 3.52MeV) alpha-particle generation rate increases significantly compared with the case for Gaussian distribution. Aiming at an application to plasma diagnostics, correlation between the modification of the emission spectrum and the gamma(γ)-ray generation rate from ⁹Be(α,nγ)¹²C reaction is studied.

Original language	English
Pages (from-to)	114-118
Number of pages	5
Journal	Fusion Science and Technology
Volume	56
Issue number	1
DOIs	https://doi.org/10.13182/FST09-A8886
Publication status	Published - Jul 2009

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Nuclear and High Energy Physics
Nuclear Energy and Engineering
Materials Science(all)
Mechanical Engineering

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10.13182/FST09-A8886

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title = "Modification of alpha-particle emission spectrum and its verification scenario using 9be+α reaction in beam-injected dt plasmas",

abstract = "The alpha-particle emission spectrum in beam-injected deuterium-tritium (DT) 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 fraction of the energetic (> 3.52MeV) alpha-particle generation rate increases significantly compared with the case for Gaussian distribution. Aiming at an application to plasma diagnostics, correlation between the modification of the emission spectrum and the gamma(γ)-ray generation rate from 9Be(α,nγ)12C reaction is studied.",

author = "Hideaki Matsuura and Yasuyuki Nakao",

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doi = "10.13182/FST09-A8886",

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AU - Matsuura, Hideaki

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N2 - The alpha-particle emission spectrum in beam-injected deuterium-tritium (DT) 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 fraction of the energetic (> 3.52MeV) alpha-particle generation rate increases significantly compared with the case for Gaussian distribution. Aiming at an application to plasma diagnostics, correlation between the modification of the emission spectrum and the gamma(γ)-ray generation rate from 9Be(α,nγ)12C reaction is studied.

AB - The alpha-particle emission spectrum in beam-injected deuterium-tritium (DT) 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 fraction of the energetic (> 3.52MeV) alpha-particle generation rate increases significantly compared with the case for Gaussian distribution. Aiming at an application to plasma diagnostics, correlation between the modification of the emission spectrum and the gamma(γ)-ray generation rate from 9Be(α,nγ)12C reaction is studied.

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Modification of alpha-particle emission spectrum and its verification scenario using ⁹be+α reaction in beam-injected dt plasmas

Abstract

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