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Division Spotlight
Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
Meeting Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
DOE extends Centrus’s HALEU production contract by one year
Centrus Energy has announced that it has secured a contract extension from the Department of Energy to continue—for one year—its ongoing high-assay low-enriched uranium (HALEU) production at the American Centrifuge Plant in Piketon, Ohio, at an annual rate of 900 kilograms of HALEU UF6. According to Centrus, the extension is valued at about $110 million through June 30, 2026.
R. N. Whitesel, R. Sher
Nuclear Science and Engineering | Volume 45 | Number 1 | July 1971 | Pages 14-24
Technical Paper | doi.org/10.13182/NSE71-A20341
Articles are hosted by Taylor and Francis Online.
The Doppler effect in 238U and 232Th metal has been measured by the activation technique in a 1/E spectrum. The samples consisted of foils (or packets of foils) irradiated under cadmium near the center of the Stanford University Pool Reactor. All the measurements were performed at a heated sample temperature of 500 °K. The values of the surface-to-mass ratio (S/M) of the uranium samples ranged from 1 to 20 cm2/g; two values of S/M in the same range were used for thorium. Experimental values of the Doppler ratio, R, defined as the ratio of heated sample activity to unheated sample activity, are shown to be in good agreement with ratios of resonance integrals calculated by ZUT-TUZ and/or GAROL.
