从实验中子发射谱中提取的14mev下93Nb(n, 2n)92Nb截面

D. Hermsdorf, S. Sassonoff, D. Seeliger, K. Seidel
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引用次数: 10

摘要

通过中子发射光谱的测量和分析,得到了14·6 MeV下93Nb(n, 2tn)92Nb反应的信息,并考虑了反应的复合核发射和预复合阶段的发射。结果表明,σn, 2n的活化截面值为≈1200 mb,证实了最近的分析结果,即≈450 mb的活化截面应该大大增加,这对设计聚变反应堆包层具有重要意义,其中Nb是首选材料。
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The 93Nb(n, 2n)92Nb cross-section at 14 MeV extracted from experimental neutron emission spectrum

Informations on the 93Nb(n, 2tn)92Nb reaction at 14·6 MeV have been obtained from measurements of neutron emission spectra and its analysis taking into account the compound nucleus emission and emission during the precompound phase of the reaction. The result is a value of ≈ 1200 mb for σn, 2n confirming recent analysis that the activation cross-section of ≈ 450 mb should be considerably increased with important consequences for design of fusion reactor blankets, where Nb is a preferred material.

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The neutron yield from Li, Be, Co and Cu under proton bombardment at energies from 5 to 10 MeV The emission spectra of NaD2O, InBe, LaBe and NaBe photoneutron sources Neptunium-237 production and recovery An exact solution of a transcendental equation basic to the theory of intermediate resonance absorption of neutrons Mathematical theory of transport processes in gasesJ. H. Ferziger and H. G. Kaper, North Holland, Amsterdam (1972). pp. 579
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