5.重イオン慣性核融合標的の物理(<小特集>重イオン慣性核融合の新しい展開)

概要

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The target physics of heavy ion inertial fusion are briefly reviewed. In particular, the design of x-ray converters embedded in a hohlraum target is a critical issue in the achievement of the highly uniform implosion of a fuel pellet. The radiation symmetrization mechanism is systematically shown. Different kinds of target disigns are presented using, for example, localized compact converters and uniformly distributed foam converters. These, in turn, strongly affect accelerators' key parameters such as the total driver enerty E_D, ion kinetic energy E_<ion>, focal spot radiusγ_F, and beam array configuration. In light of the high efficiency and reliability of heavy ion accelerators, it seems possible to create a practical power plant design in which the minimum required pellet gain can be tolorated at moderate levels (G≥50) under the condition of E_D=3-5MJ, E_<ion>=5-10GeV, andγ_F=1.5-5mm.
社団法人プラズマ・核融合学会の論文
2001-01-25