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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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Latest News
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.
J. M. Blocker, Jr., M. F. Browning, W. J. Wilson, V. M. Secrest, A. C. Secrest, R. B. Landrigan, J. H. Oxley
Nuclear Science and Engineering | Volume 20 | Number 2 | October 1964 | Pages 153-170
Technical Paper | doi.org/10.13182/NSE64-A28930
Articles are hosted by Taylor and Francis Online.
Of the several factors tending toward failure of fuel-particle coatings in irradiation, fuel swelling and radiation damage to the first 15–20 μm of coating by fission recoils are concluded to- deserve the greatest immediate attention. Whereas ceramic coatings of sufficient thickness might withstand the stress, thinner coatings containing cushion layers or voids can be designed in principle to accommodate the effects of radiation damage. This has been demonstrated for pyrolytic carbon and alumina coatings formed by chemical vapor-deposition reactions. These principles cannot be applied to oriented coatings whose grains suffer anisotropic radiation damage by neutrons. This factor may ultimately limit the applicability of BeO coatings. Crushing strength, density, and hardness data are presented which show that pyrolytic carbon coatings with the same microstructure can have a wide range of properties. It is concluded that pyrolytic carbon coatings are not properly characterized by the terms ‘laminar’ and ‘columnar’ frequently used to describe their appearance. In the case of Al and Be coatings obtained by hydrolysis of the respective chloride vapors, deposition temperature is the most significant factor determining grain structure and permeability. A12O3 coatings range from porous amorphous varieties, through an impermeable ‘glass’ to elongated grains extending through the coating. The equivalent of the Al2O3 glass has not been observed in the BeO coatings. MgO coatings can be expected to be of limited utility because of low strength. ZrO2 coatings have the deficiency of permitting rapid oxygen diffusion.