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Issues for magnetic and inertial fusion energy development

A J Wootton, L John Perkins2000年Plasma Physics and Controlled FusionIF 2.2出版社

A discussion of the issues facing both magnetic and inertial fusion schemesfor the generation of energy is presented. For magnetic fusion, theconventional tokamak device appears likely to `work', i.e. it will convertwall plug power into plasma temperature and reasonable energy gain will beobtained. However, it is viewed by many as unacceptable as a commercial reactorcandidate - i.e. it is too expensive and too complex. Arguing that within a givenconcept (but not between concepts) compactness is advantageous, a steady-stateenergy balance model is used to illustrate how to reduce size. Inertial fusionoffers potential advantages over its magnetic counterpart, but while physicsprogress has been maintained, hot-spot ignition and propagating burn remain tobe demonstrated in the laboratory. The proposed solutions to inertial fusiontechnology challenges, mostly very different from those involved in magneticfusion, also require demonstrating.

日本語訳

磁気核融合と慣性核融合の両方式がエネルギー生成において直面する課題について論じる。磁気核融合に関しては、従来型のトカマク装置が「機能する」可能性が高い、すなわち、壁コンセント電力からプラズマ温度への変換が達成され、合理的なエネルギー利得が得られるであろう。しかし、商業用炉心候補としては受け入れがたいと多くの者が見なす、すなわち、コストが高すぎ、複雑すぎる。所与の概念内(ただし概念間ではない)でコンパクト性が有利であると論じ、定常状態のエネルギー収支モデルを用いてサイズ縮小の方法を示す。慣性核融合は磁気核融合に比べて潜在的な利点を有するが、物理の進展は維持されているものの、ホットスポット点火と伝播燃焼は依然として実験室での実証が待たれる。慣性核融合技術の課題に対する提案された解決策は、磁気核融合に関わるものとは大部分が異なり、これらもまた実証を必要とする。

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