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Impact of supra thermonuclear neutrons on inertial fusion reactor technology

Anil Kumar1997年Fusion Engineering and DesignIF 1.7出版社

AbstractIt is estimated that one could anticipate as many as 10% supra thermonuclear neutrons, of energy as high as 20 MeV, for each thermonuclear neutron, from an optically thick d-t core of a typical inertial fusion energy (IFE) reactor target (ϱR ≥ 3 g cm−2). This high energy neutron tail generated in an IFE target opens up additional threshold reaction channels leading to enhanced activation of the target, the surrounding reactor blanket and the shield. For example, SiC activation increases by as much as six orders of magnitude when supra thermonuclear neutrons are accounted for. It is recommended to validate the conclusions of the present studies experimentally through D-T shots at NOVA and the planned NIF facility at Lawrence Livermore National Laboratory.

日本語訳

抄録 典型的な慣性核融合エネルギー(IFE)炉心ターゲットの光学的に厚いd-tコアから、各熱核中性子につき最大10%もの超熱核中性子が、20MeVもの高エネルギーで発生すると推定される。IFEターゲット内で生成されるこの高エネルギー中性子テールは、追加のしきい値反応経路を開放し、ターゲット自体、周囲の炉ブランケット、および遮蔽体の放射化を増強する。例えば、超熱核中性子を考慮すると、SiCの放射化は最大6桁も増大する。本研究の結論を実験的に検証するため、ローレンス・リバモア国立研究所のNOVAおよび計画中のNIF施設におけるD-T実験による検証が推奨される。

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Inertial confinement fusion
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