On the possibility of electron degeneracy diagnostics in laser-imploded DT fuel for fast ignition

Y. Nakao, N. Senmyo, N. Nakamura, Hideaki Matsuura, T. Johzaki, V. T. Voronchev

研究成果: ジャーナルへの寄稿記事

5 引用 (Scopus)

抄録

A new method to diagnose the degree of electron degeneracy in compressed fuel for fast-ignition inertial confinement fusion is proposed. We focus on 4.44-MeV γ-rays emitted in the reaction 9Be(α, nγ)12C governed by fusion-produced energetic alpha-particles in a laser-imploded DT fuel pellet admixed with a small amount of 9B. In this case the compressed fuel pellet is not subjected to any heating laser pulse. We have evaluated the probability Pα-Be that the α + 9Be reaction occurs during the slowing down of α-particle. It is found that the reaction probability depends strongly on the degeneracy parameter Θ, which is defined as the ratio of electron temperature to the Fermi energy. We show the possibility of diagnosing the electron degeneracy from the Pα-Be-Θ diagram by detecting the 4.44-MeV γ-quanta and DT neutrons emitted from the dense core plasma.

元の言語英語
ページ(範囲)391-394
ページ数4
ジャーナルFusion Science and Technology
56
発行部数1
DOI
出版物ステータス出版済み - 1 1 2009

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ignition
Ignition
Inertial confinement fusion
pellets
Alpha particles
Electrons
Lasers
Electron temperature
Fermi level
lasers
Laser pulses
Neutrons
electrons
Fusion reactions
laser heating
inertial confinement fusion
energetic particles
Plasmas
Heating
alpha particles

All Science Journal Classification (ASJC) codes

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

これを引用

On the possibility of electron degeneracy diagnostics in laser-imploded DT fuel for fast ignition. / Nakao, Y.; Senmyo, N.; Nakamura, N.; Matsuura, Hideaki; Johzaki, T.; Voronchev, V. T.

:: Fusion Science and Technology, 巻 56, 番号 1, 01.01.2009, p. 391-394.

研究成果: ジャーナルへの寄稿記事

Nakao, Y. ; Senmyo, N. ; Nakamura, N. ; Matsuura, Hideaki ; Johzaki, T. ; Voronchev, V. T. / On the possibility of electron degeneracy diagnostics in laser-imploded DT fuel for fast ignition. :: Fusion Science and Technology. 2009 ; 巻 56, 番号 1. pp. 391-394.
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AU - Voronchev, V. T.

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