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The ignition parameter Tnτ and the energy multiplication factor k for fusioning plasmas

J. Rand McNally Jr.1977年被引用 15Nuclear FusionIF 3出版社

This paper presents some novel interpretations of fusion plasmas which may be of interest to both fission and fusion scientists and engineers. A new fusion ignition parameter (TneτE)I is proposed which is proportional to β2B4 and inversely proportional to the fusion power density (PFusion) of a reacting plasma. Curves are given for many potential nuclear fusion fuels. The energy utilization factor in existing devices is defined as f = PFusion/PLoss = (TneτL)/(TneτE)I; in experimental plasmas, f has increased by about two orders of magnitude in the past decade and now exceeds 10−4 (a "nearest" f* exceeds 10−3). The f factor is also analogous to its fission counterpart in the four-factor neutron multiplication factor k = f η p, where f is the neutron thermal utilization factor. Past, present, and future fusion experiments are discussed briefly in this context.

日本語訳

本論文は、核融合プラズマに関するいくつかの新たな解釈を提示するものであり、核融合および核分裂の科学者・技術者の双方にとって興味深い内容となり得る。新たな核融合点火パラメータ (TneτE)I が提案され、これは β2B4 に比例し、反応プラズマの核融合出力密度 (PFusion) に反比例する。多くの潜在的核融合燃料について曲線が示されている。既存の装置におけるエネルギー利用係数は、f = PFusion/PLoss = (TneτL)/(TneτE)I と定義される。実験プラズマにおいて、f は過去10年間で約2桁増加し、現在では 10−4 を超えている(「最近の」f* は 10−3 を超える)。また、この f 係数は、核分裂における四因子中性子増倍率 k = f η p(ここで f は中性子熱利用係数)の対応物と類似している。過去、現在、そして将来の核融合実験について、この文脈で簡潔に議論する。

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