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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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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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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Latest News
Investment bill would provide funding options for energy projects
Coons
Moran
The bipartisan Financing Our Futures Act, which expands certain financing tools to all types of energy resources and infrastructure projects, was reintroduced to the U.S. Senate on February 20 by Sens. Jerry Moran (R., Kan.) and Chris Coons (D., Del.).
Via amendment to the Internal Revenue Code, the legislation would allow advanced nuclear energy projects to form as master limited partnerships (MLPs), a tax structure currently available only to traditional energy projects.
An MLP is a business structure that is taxed as a partnership but the ownership interests of which are traded like corporate stock on a market. Until the Internal Revenue Code is amended, MLPs will continue to be available only to investors in energy portfolios for oil, natural gas, coal extraction, and pipeline projects that derive at least 90 percent of their income from these sources. This change would take effect on January 1, 2026.
Ronald F. Kulak
Nuclear Technology | Volume 51 | Number 3 | December 1980 | Pages 414-420
Technical Paper | Mechanics Applications to Fast Breeder Reactor Safety / Reactor | doi.org/10.13182/NT80-A32577
Articles are hosted by Taylor and Francis Online.
This paper assesses the structural dynamics of the deck structure and the resulting loading on the deck supports of a pool-type liquid-metal fast breeder reactor during a hypothetical core disruptive accident. During this hypothetical accident. the sodium above the core is considered to be propelled upward until it impacts against the deck structure. This hydrodynamic loading could produce structural damage and sodium leak paths. The deck is a three-dimensional composite structure of beams, plates, and concrete fill. It is supported at its outer periphery by the surrounding concrete foundation. The deck provides top closure of the main tank and support for the intermediate heat exchangers, primary pumps, rotating plugs, and primary and secondary tanks. A finite element model is used to study the deck dynamics during slug impact. The structural stiffening effect of the concrete fill is assessed, and results are given for deck displacement and velocity histories and deck support column reaction forces.
