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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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Latest News
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.
Peter J. Millett, James M. Fenton
Nuclear Technology | Volume 108 | Number 2 | November 1994 | Pages 256-265
Technical Paper | Material | doi.org/10.13182/NT94-A35033
Articles are hosted by Taylor and Francis Online.
A detailed model of the transport processes that produce concentrated solutions locally in pressurized water reactor steam generators has been developed. The model describes the heat, mass, and momentum transfer processes that occur in porous deposits such as those found in tube support and tubesheet crevices and in the sludge pile on top of the tubesheet. The model is used to predict the concentration of a species in the pore solution as a function of time and at steady state, and the model predictions are compared to available experimental data. Several parametric studies were performed with the model to identify important design and operating parameters.
