Non-destructive assay of EBR-II blanket elements using resonance transmission analysis. | Zendy

R. T. Klann | Zendy; W.P. Poenitz | Zendy

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Non-destructive assay of EBR-II blanket elements using resonance transmission analysis.

Author(s) -

R. T. Klann,

W.P. Poenitz

Publication year - 1998

Language(s) - English

Resource type - Reports

DOI - 10.2172/12067

Subject(s) - blanket , resonance (particle physics) , uranium 238 , uranium , analytical chemistry (journal) , fission , radiochemistry , uranium 235 , chemistry , plutonium 239 , uranium 233 , plutonium 240 , nuclear physics , materials science , neutron , physics , atomic physics , plutonium , mox fuel , chromatography , composite material

Resonance transmission analysis utilizing a faltered reactor beam was examined as a means of determining the {sup 239}Pu content in Experimental Breeder Reactor-II depleted uranium blanket elements. The technique uses cadmium and gadolinium falters along with a {sup 239}Pu fission chamber to isolate the 0.3 eV resonance in {sup 239}Pu. In the energy range of this resonance (0.1 eV to 0.5 ev), the total microscopic cross-section of {sup 239}Pu is significantly greater than the cross-sections of {sup 238}U and {sup 235}U. This large difference allows small changes in the {sup 239}Pu content of a sample to result in large changes in the mass signal response. Tests with small stacks of depleted uranium and {sup 239}Pu foils indicate a significant change in response based on the {sup 239}Pu content of the foil stack. In addition, the tests indicate good agreement between the measured and predicted values of {sup 239}Pu up to approximately two weight percent

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