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The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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2024 ANS Winter Conference and Expo
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Orlando, FL|Renaissance Orlando at SeaWorld
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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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New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
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.