Intercomparisons of Calculations Made for GODIVA and JEZEBEL

JEFF Report 16

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This report gives details of intercomparisons studies undertaken to investigate the accuracy of calculation methods used for reactor physics studies. The same nuclear data library, JEF-2.2, was used in all the codes. The objective of the study was to estimate the uncertainties arising from approximations in the cross-section processing and neutronics methods, as well as to provide guidance on the sources of the differences. The intercomparisons studied were the small Los Alamos fast spectrum critical spheres, GODIVA and JEZEBEL.