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Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
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2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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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Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
G. Russell Taylor, Paul Cohen
Nuclear Technology | Volume 1 | Number 5 | October 1965 | Pages 446-452
Technical Paper | doi.org/10.13182/NT65-A20556
Articles are hosted by Taylor and Francis Online.
Chemical and radiochemical analyses of fuel-clad material, fuel-clad corrosion-product films, fuel-clad deposits, and circulating corrosion products for the Yankee and Saxton nuclear power reactors are presented. In the neutral water chemistry of the Yankee Plant, the circulating corrosion products and deposits have similar chemical composition, exhibiting primarily chromium depletion with respect to the base metal; the corrosion film is highly enriched in chromium and depleted in iron relative to the base metal. In the Saxton water chemistry (boric acid with potassium hydroxide added) the circulating corrosion products are similar to the base metal in composition, and correspondingly, the chromium content of the film is significantly lower than that of the Yankee corrosion film. As would be expected, the specific activity of the metallic elements in both cases decreases in the order: clad, film, deposit, and circulating corrosion products. The pronounced decrease in activity from the clad to the film indicates that even the corrosion oxide film is largely deposited rather than originating from the local base metal. From the specific activity of the circulating insoluble corrosion products, it is difficult to explain quantitatively the observed radiation levels external to the reactor cores.
