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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.
Mohamed Ouisloumen, Richard Sanchez
Nuclear Science and Engineering | Volume 107 | Number 3 | March 1991 | Pages 189-200
Technical Paper | doi.org/10.13182/NSE89-186
Articles are hosted by Taylor and Francis Online.
The exact form of the differential scattering cross section for elastic scattering in an isotropic media with a Maxwellian velocity distribution is derived. Numerical examples show substantial neutron upscattering off heavy isotopes. Scattering resonances strongly affect neutron scattering, and it is found that for the lowest energy resonances of 238U, the average energy of the scattered neutron can be higher than the initial neutron energy.
