A Correlation Technique for Resonance Calculations

Abstract

A correlation technique has been developed to make the accuracy of complex and long running resonance treatments available in fast, routine calculations. The technique is based on the subgroup method and is used to generate group-averaged resonance reaction rates. By fitting the correlation to several detailed auxiliary resonance calculations, a set of weights (the Lebesgue measure) is obtained. The weights may then be applied to a wider range of new cases. Use of the correlation techn.i4ue results in one-tenth thP. computational burden of the detailed resonance treatment; yet, the results duplicate the detailed calculations to within 1/100% in keff• * The information contained in this article was ueveloped during the course of work under Contract No. AT(07-2)-l with the U.S.