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Division Spotlight
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.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver 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
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
W. E. Gunson, J. A. George, H. P. Horner, D. K. Goeser
Nuclear Technology | Volume 6 | Number 4 | April 1969 | Pages 279-286
Technical Papers and Note | doi.org/10.13182/NT69-A28335
Articles are hosted by Taylor and Francis Online.
Systems considerations influencing the design of vertical, centrifugal, and free surface pumps for liquid-metal fast breeder reactors are evaluated. Systems were analyzed to guide in selections for pumps with flow ranges of 10 000 to 200 000 gal/min and head ranges from 100 to 450 ft for both the sea-of-sodium and piped reactor arrangements. The system analyses defined the parametric relationships between the pump, the coolant system, and the overall plant requirements. The plant arrangement, piped or sea-of-sodium, affects the net positive suction head available, choice of pump location, the severity of the thermal transients, system pressure levels, and ease of operation and maintenance.
