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Division Spotlight
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
Meeting Spotlight
2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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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.
R. L. French, J. H. Price, and K. W. Tompkins
Nuclear Science and Engineering | Volume 27 | Number 2 | February 1967 | Pages 360-366
Technical Paper | doi.org/10.13182/NSE67-A18275
Articles are hosted by Taylor and Francis Online.
Four simple enclosure shields were exposed to fallout from Shot Small Boy of Operation Sunbeam. Gamma-ray measurements were made both inside and outside the enclosures to determine time-dependent and time-integrated dose transmission factors (dose inside divided by dose outside). The analysis of the experiment consisted of calculating similar factors and comparing with the measured data. Monte Carlo procedures were used to determine the radiation distribution incident upon the shields and to compute the radiation penetration into the shields. Fallout gamma-ray spectra resulting from several different theoretical and experimental investigations were used in calculating the dose transmission factors. The calculated dose transmission factors were found to be consistently higher than the measured factors by as much as a factor of 2, depending upon the particular source term. After investigating several possible causes, it was concluded that the discrepancy was probably the cumulative effect of a deficiency of low-energy photons in the calculated source terms, omission of support structure inside the enclosure shields in the penetration calculations, and of neglecting the effects of ground roughness in the calculations.