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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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Nuclear Science and Engineering
June 2025
Nuclear Technology
Fusion Science and Technology
May 2025
Latest News
Industry Update—May 2025
Here is a recap of industry happenings from the recent past:
TerraPower’s Natrium reactor advances on several fronts
TerraPower has continued making aggressive progress in several areas for its under-construction Natrium Reactor Demonstration Project since the beginning of the year. Natrium is an advanced 345-MWe reactor that has liquid sodium as a coolant, improved fuel utilization, enhanced safety features, and an integrated energy storage system, allowing for a brief power output boost to 500-MWe if needed for grid resiliency. The company broke ground for its first Natrium plant in 2024 near a retiring coal plant in Kemmerer, Wyo.
Noriaki Takahashi, Hideaki Morishita, Naomichi Kanegae, Akihiro Niimi
Nuclear Technology | Volume 86 | Number 1 | July 1989 | Pages 7-16
Technical Paper | Fission Reactor | doi.org/10.13182/NT89-A34275
Articles are hosted by Taylor and Francis Online.
To reduce the cost of fast breeder reactor plants, advanced subsystem concepts are studied. The material quantities of the fuel handling system constituent subsystems are estimated and those with the largest quantities are selected for improvement. The advanced subsystem concepts studied include in-vessel fuel storage while cooling, an in-vessel fuel transfer machine with variable-reach arm, and a halfswing hinged-track fuel transfer machine. A significant reduction of overall system material quantity is promised by a suitable combination of the proposed advanced concepts.
