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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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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Powering the future: How the DOE is fueling nuclear fuel cycle research and development
As global interest in nuclear energy surges, the United States must remain at the forefront of research and development to ensure national energy security, advance nuclear technologies, and promote international cooperation on safety and nonproliferation. A crucial step in achieving this is analyzing how funding and resources are allocated to better understand how to direct future research and development. The Department of Energy has spearheaded this effort by funding hundreds of research projects across the country through the Nuclear Energy University Program (NEUP). This initiative has empowered dozens of universities to collaborate toward a nuclear-friendly future.
F. U. Ahmed, M. A. Rahman, S. R. Husain, M. M. Rahman
Nuclear Science and Engineering | Volume 85 | Number 4 | December 1983 | Pages 427-430
Technical Note | doi.org/10.13182/NSE83-A18390
Articles are hosted by Taylor and Francis Online.
The dose buildup factors (up to 20 mfp) for gamma rays from a point isotropic 60Co source penetrating multilayered concrete slabs using Cox's Bazar and Sylhet sands have been measured. The instantaneous relaxation lengths (up to 20 mfp) have also been measured for both types of concrete slabs. Some physical properties of concrete blocks of magnetite, Sylhet sand, and a mixture of both types of sand have been measured. Results obtained show that the buildup factors for Sylhet sand slabs increase more rapidly than those of magnetite slabs. The buildup factors for Sylhet sand concrete (ordinary concrete) have been compared with the results obtained from the Berger formula at an energy of 1.25 MeV. The transmission is higher through slabs of Sylhet sand than those of magnetite. Comparing all properties among magnetite slabs, Sylhet sand slabs, and a mixture of magnetite and Sylhet sand slabs, it is found that slabs of a mixture of both sands are more effective for reactor shielding than those comprised of only one of the components.