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September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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General Matter to build Kentucky enrichment plant under DOE lease
The Department of Energy’s Office of Environmental Management announced it has signed a lease with General Matter for the reuse of a 100-acre parcel of federal land at the former Paducah Gaseous Diffusion Plant in Kentucky for a new private-sector domestic uranium enrichment facility.
T. R. England, W. B. Wilson, R. E. Schenter, F. M. Mann
Nuclear Science and Engineering | Volume 85 | Number 2 | October 1983 | Pages 139-155
Technical Paper | doi.org/10.13182/NSE83-A27422
Articles are hosted by Taylor and Francis Online.
The evaluated nuclear data files (ENDF/B-V) have been used for 105 precursors, augmented with experimental spectral data for 29 emitters and recent model calculations for the remaining 76 emitters, in aggregate summation calculations. The equilibrium-delayed neutron intensities and spectra in the conventional six time groups for 11 fissionable nuclides were calculated. Normalized experimental neutron spectra for 29 emitters were supplied by Rudstam. Augmentation of the spectra uses data calculated with a recently developed code, BETA. Fission yields of the precursors and their delayed neutron branching fractions, Pn, are from ENDF/B-V. Results are compared where possible with corresponding group and total evaluations of aggregate measurements. The intent of these calculations is to examine the adequacy of precursor data for inclusion in ENDF/B-VI. Most of the results, particularly with the added model parameters, are sufficiently accurate to be of direct interest to the reactor community. The total delayed neutron yield per neutron absorption, , for 238U and 232Th suggests that either an improvement in ENDF/B fission yields is needed or the evaluated experimental values are in significant error.