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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.
Bal Raj Sehgal
Nuclear Science and Engineering | Volume 27 | Number 1 | January 1967 | Pages 95-103
Technical Paper | doi.org/10.13182/NSE67-A18046
Articles are hosted by Taylor and Francis Online.
Resonance integral calculations are done for 232Th infinite dilute, 232Th metal rod, and 232Th02 rod systems. Doppler effect calculations are performed for 232 Th02 rod systems for temperatures up to 2000°K. The resolved resonance integral for rod systems at each temperature is evaluated by Monte Carlo calculations and the resonance overlap effect between the two resonances of Th at 21.78 and 23.45 eV is taken into account. The unresolved s- and p-wave contributions were computed by standard methods. The data describing the resolved resonance parameters up to 3 keV (гγ = 25.9 meV) recommended in BNL-325 (Supplement No. 2, 1965) are used in these calculations. The p-wave strength function in the unresolved energy range is taken to be 1.83 x 10 -4 (eV)-1/2. The calculated resonance integrals and Doppler coefficients are compared with measurements and they are found to be in excellent agreement with each other.
