<RESEARCH REPORT>SELF-SIMILAR EXPANSIONS IN ION BEAM FUSION
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概要
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The self-similar expansion generated by an intense light ion beam pulse of energy per nucleon E_b=E_o (t/τ)^p and current intensity I_b=I_o (t/τ)^<2p-1> (0<t<τ) impinging on a planar target is considered. The structure of the expansion flow is analyzed and profiles of beam density and velocity and density, velocity and temperature of the plasma are found from the analysis. Quantities of interest in inertial confinement fusion such as the ablation pressure and the mass ablated rate as functions of time for several values of the law time exponent p are obtained. The acceleration efficiency of thin foils, defined as the fraction of absorbed energy that goes to foil kinetic energy as function of p has been also calculated.
- 核融合科学研究所の論文
著者
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Fernandez A.
Department Of Thermo And Fluid Mechanical Engineering
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Barrero A.
Department of Thermo and Fluid Mechanical Engineering