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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.
F. A. Khan, J. A. Harvey
Nuclear Science and Engineering | Volume 25 | Number 1 | May 1966 | Pages 31-36
Technical Paper | doi.org/10.13182/NSE66-A17498
Articles are hosted by Taylor and Francis Online.
Transmission measurements on samples of natural tungsten (W) and samples enriched in 184W have been made with the ORNL fast-chopper time-of-flight spectrometer. The measurements were made at the 180-m flight station with a resolution of ≈ 10 nsec/m between 40 and 10 000 eV, and at the 45-m station with an energy resolution from 0.7 to 1.5% between 0.2 and 100 eV. The transmission data have been analyzed to give the parameters for 16 resonances in 184W up to 2100 eV. From these parameters the following data for 184W have been determined: an average neutron level spacing of 110 ± 30 eV, an s-wave neutron strength function of (3.1 ±1.1) × 10 −4, and a radiative-capture resonance integral of 12 ± 2 b.