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The nuclear performance of vanadium as a structural material infusion reactor blankets

D. Steiner1974年被引用 36Nuclear FusionIF 3出版社

The nuclear performance of vanadium as a structural material in a deuterium-tritium fusion reactor is discussed. For comparison, calculations are also presented for niobium. The areas considered include: (1) tritium breeding; (2) nuclear heating; (3) radiation effects relating to material damage; and (4) neutron-induced activity. It is concluded that: (1) the tritium breeding characteristics of vanadium are somewhat superior to those of niobium; (2) nuclear heating in the first wall of the blanket will be substantially lower with vanadium than with niobium; (3) helium and hydrogen production in the first wall will be significantly greater with vanadium than with niobium; and (4) vanadium will exhibit an afterheat and biological hazard several orders of magnitude lower than that of niobium for times-after-shutdown of ∼ 100 days and greater.

日本語訳

重水素-トリチウム核融合炉における構造材料としてのバナジウムの核性能について議論する。比較のために、ニオブについての計算も提示する。検討される領域には、(1)トリチウム増殖、(2)核加熱、(3)材料損傷に関する放射線効果、および(4)中性子誘起放射能が含まれる。結論として、(1)バナジウムのトリチウム増殖特性はニオブのものよりやや優れている。(2)ブランケットの第一壁における核加熱は、ニオブよりもバナジウムの方が大幅に低くなる。(3)第一壁におけるヘリウムと水素の生成は、ニオブよりもバナジウムの方が有意に大きくなる。(4)バナジウムは、停止後∼100日以上において、ニオブよりも数桁低い余熱と生物学的危険性を示す。

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