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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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NNSA awards BWXT $1.5B defense fuels contract
The Department of Energy’s National Nuclear Security Administration has awarded BWX Technologies a contract valued at $1.5 billion to build a Domestic Uranium Enrichment Centrifuge Experiment (DUECE) pilot plant in Tennessee in support of the administration’s efforts to build out a domestic supply of unobligated enriched uranium for defense-related nuclear fuel.
J. J. Ullo and M. Goldsmith
Nuclear Science and Engineering | Volume 60 | Number 3 | July 1976 | Pages 239-250
Technical Paper | doi.org/10.13182/NSE76-A26881
Articles are hosted by Taylor and Francis Online.
Monte Carlo analysis of the measurements of Smith et al. of the number of fission neutrons produced per neutron absorbed, η, for 2200 m/sec neutrons absorbed by 233U and 235U yields: = 2.2993 ± 0.0082 and = 2.0777 ± 0.0064. The standard deviations include Monte Carlo, cross-section, and experimental uncertainties. The Monte Carlo analysis was confirmed by calculating measured quantities used by the experimentalists in determining η2200.
