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Source of thermonuclear neutrons based on gas dynamic trap: Status of conceptual design and alternative applications

A.V. Andriyash, K.F. Grebyonkin, S.A. Emelyanov, Yu.N. Zuev, E.P. Kruglyakov1998年Fusion Engineering and DesignIF 1.7出版社

AbstractThe paper reviews some results of conceptual design of the 14 MeV D–T neutron source dedicated for fusion reactor materials and components testing. The source is based on use of the so called ‘gas dynamic trap’ (GDT) which was first proposed and studied at the Budker Institute of Nuclear Physics (Novosibirsk). The neutron flux in the test zone of the source makes up 2–2.5 MW m−2 under realistic assumptions on achievable plasma parameters and amounts of tritium circulating in the system. An alternative application of using the proposed neutron source as a basis of pilot facility for long-lived radioactive waste transmutation is studied. It is shown that incineration of minor actinides in the transmutator provides a drastic reduction of amount and activity of long-lived waste.

日本語訳

抄録 抄録本論文では、核融合材料・部品の試験を目的とした14MeV D-T中性子源の概念設計に関するいくつかの結果をレビューする。この中性子源は、バドカー核物理研究所で最初に提案・研究された、いわゆる「ガス動的トラップ」(GDT)に基づいている。実現可能なプラズマパラメータと循環するトリチウム量を仮定すると、試験領域における中性子束は2〜2.5 MW m⁻²に達する。提案された中性子源を、長寿命放射性廃棄物の核変換のためのパイロット施設の基盤として使用する代替応用についても検討する。マイナーアクチニドの核変換により、廃棄物中の長寿命放射性核種の量と放射能を大幅に削減できることが示されている。

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