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THE MEASUREMENT OF U$sup 238$:U$sup 235$ FISSION RATIOS

Carter, A.J Perks, L.G. Sanders

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Abstract

A method is described for measuring U/sup 238/: U/sup 235/ fission ratios in heterogeneous thermal reactor assemblies using aluminum disks as catcher foils and beta -counting techniques. The assumptions implicit in the formulas which yield fission ratios from measured count-ratios are listed with comments on their validity. Eeperimental results for a 1.2 diameter uranium metal rod sre presented to demonstrate the feasibility of the method. (auth)

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What this paper is about

A method is described for measuring U/sup 238/: U/sup 235/ fission ratios in heterogeneous thermal reactor assemblies using aluminum disks as catcher foils and beta -counting techniques. The assumptions implicit in the formulas which yield fission ratios from measured count-ratios are listed with comments on their validity. Eeperimental results for a 1.2 diameter uranium metal rod sre presented to demonstrate the feasibility of the method. (auth)

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Available abstract

A method is described for measuring U/sup 238/: U/sup 235/ fission ratios in heterogeneous thermal reactor assemblies using aluminum disks as catcher foils and beta -counting techniques. The assumptions implicit in the formulas which yield fission ratios from measured count-ratios are listed with comments on their validity. Eeperimental results for a 1.2 diameter uranium metal rod sre presented to demonstrate the feasibility of the method. (auth)

Key concepts: Uranium-235, Fission, Fission product yield, Uranium-238, Fission products, Radiochemistry, Uranium, Yield (engineering)

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