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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.
E. A. Coppinger, B. M. Johnson
Nuclear Technology | Volume 10 | Number 2 | February 1971 | Pages 232-236
Technical Paper and Note | Chemical Processing | doi.org/10.13182/NT71-A30932
Articles are hosted by Taylor and Francis Online.
A process for preparing an intimate mixture of uranium (or mixed uranium-plutonium) oxide and carbon was investigated. The objective was to obtain a starting material for carbide or nitride fuel material by a carbothermic reaction between carbon, uranium (plutonium) oxide, and nitrogen. These materials are attractive as nuclear fuel materials because of their high thermal conductivity and fissile material density, but suffer from the high cost of production. The process studied, which involves the rapid calcination of a mixture of uranium nitrate and sugar, would potentially lower the cost because (a) it would avoid forming the metal, and (b) it would eliminate the necessity of several steps heretofore required to thoroughly mix reactants for a carbothermic reaction.