Transient Behavior of Minor Isotopes in Cascade for Uranium Enrichment

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概要

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• A numerical method is proposed for analyzing the transient state of a three-com-ponent cascade. The method is applied to an examination of the behavior of minor isotopes of uranium in an enrichment plant.<BR>It is shown that the transient behavior of <SUP>234</SUP>U in cascade differs significantly from that of <SUP>235</SUP>U. It is indicated that in order to apply MIST (" Minor Isotope Data as a Safeguards Technique " proposed by Blumkin et al.) effectively, it would be necessary to examine the behavior of the isotopic ratio (<SUP>235</SUP>U/<SUP>234</SUP>U ) at various transient states as well as at steady state.<BR>The concentration of <SUP>236</SUP>U does not necessarily distribute monotonically from the top toward the bottom of the cascade for the production of highly enriched uranium. It is shown how the characteristic distribution of <SUP>236</SUP>U establishes itself gradually with lapse of time.

• 一般社団法人 日本原子力学会の論文

著者

• Higashi Kunio

  Department Of Nuclear Engineering Kyoto University

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• Transient Behavior of Minor Isotopes in Cascade for Uranium Enrichment

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