Influence of uncertainties of isotopic composition of the reprocessed uranium on effectiveness of its enrichment in gas centrifuge cascades

International Conference for Young Scientists, Specialists, and Postgraduates on Nuclear Reactor Physics 2016

Smirnov, A Yu^1 ; Mustafin, A.R.^1 ; Nevinitsa, V.A.^2 ; Sulaberidze, G.A.^1 ; Dudnikov, A.A.^2 ; Gusev, V.E.^1

National Research Nuclear University, MEPhI (Moscow Engineering Physics Institute), Kashirskoe shosse 31, Moscow

115409, Russia^1

National Research Center, Kurchatov Institute, Moscow, Russia^2

关键词: Depleted uranium;    Feed flows;    Feed point;    Gas centrifuges;    Isotopic composition;    Low-enriched uranium;    Natural uranium;    Separation cascade;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/781/1/012018/pdf
DOI  :  10.1088/1742-6596/781/1/012018

来源: IOP

【 摘 要 】

The effect of the uncertainties of the isotopic composition of the reprocessed uranium on its enrichment process in gas centrifuge cascades while diluting it by adding low-enriched uranium (LEU) and waste uranium. It is shown that changing the content of232U and236U isotopes in the initial reprocessed uranium within 15% (rel.) can significantly change natural uranium consumption and separative work (up to 2-3%). However, even in case of increase of these parameters is possible to find the ratio of diluents, where the cascade with three feed flows (depleted uranium, LEU and reprocessed uranium) will be more effective than ordinary separation cascade with one feed point for producing LEU from natural uranium.