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DOE OSTI · 1225565

Multigroup Free-atom Doppler-broadening Approximation. Experiment

Gray, Mark Girard
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Abstract

The multigroup energy Doppler-broadening approximation agrees with continuous energy Dopplerbroadening generally to within ten percent for the total cross sections of 1 H, 56 Fe, and 235 U at 250 lanl. Although this is probably not good enough for broadening from room temperature through the entire temperature range in production use, it is better than any interpolation scheme between temperatures proposed to date, and may be good enough for extrapolation from high temperatures. The method deserves further study since additional improvements are possible.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICSDoppler-broadeningFree-atom approximationMultigroup

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Gray, Mark Girard. 2015-11-06. Multigroup Free-atom Doppler-broadening Approximation. Experiment. https://doi.org/10.2172/1225565

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