Uranium Density and Enrichment in Fuel Tubes Determined from 232U and 235U Y-Activities

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Gamma spectroscopy is used to determine 235U density and enrichment in U-Al fuel tubes containing recycled fuel. A collimated HPGe Y-detector views the tube surface, such that U-Al disk volumes of 6.35 mm diameter and approximately 1.0 mm thickness are examined. The Y-activities from 232U and 235U, along with the tube design parameters, are used to deduce the attenuation-corrected results. Respective density and enrichment variations of less than 1 percent and less than 0.6e percent were measurable with 2000 sec counting time per tube location. Such measurements are useful for certifying tube quality and characterizing problems associated with blending the ... continued below

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Winn, W.G. May 25, 1984.

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Gamma spectroscopy is used to determine 235U density and enrichment in U-Al fuel tubes containing recycled fuel. A collimated HPGe Y-detector views the tube surface, such that U-Al disk volumes of 6.35 mm diameter and approximately 1.0 mm thickness are examined. The Y-activities from 232U and 235U, along with the tube design parameters, are used to deduce the attenuation-corrected results. Respective density and enrichment variations of less than 1 percent and less than 0.6e percent were measurable with 2000 sec counting time per tube location. Such measurements are useful for certifying tube quality and characterizing problems associated with blending the U-Al alloy.

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  • Journal Name: Nuclear Instruments and Methods

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  • Report No.: DP-MS-84-12 Rev. 1
  • Grant Number: AC09-76SR00001
  • Office of Scientific & Technical Information Report Number: 780733
  • Archival Resource Key: ark:/67531/metadc725053

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  • May 25, 1984

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  • Sept. 29, 2015, 5:31 a.m.

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  • May 5, 2016, 5:57 p.m.

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Winn, W.G. Uranium Density and Enrichment in Fuel Tubes Determined from 232U and 235U Y-Activities, article, May 25, 1984; South Carolina. (digital.library.unt.edu/ark:/67531/metadc725053/: accessed November 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.