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Division Spotlight
Education, Training & Workforce Development
The Education, Training & Workforce Development Division provides communication among the academic, industrial, and governmental communities through the exchange of views and information on matters related to education, training and workforce development in nuclear and radiological science, engineering, and technology. Industry leaders, education and training professionals, and interested students work together through Society-sponsored meetings and publications, to enrich their professional development, to educate the general public, and to advance nuclear and radiological science and engineering.
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
May 2025
Nuclear Technology
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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.
Mark W. Crump, John C. Lee
Nuclear Technology | Volume 41 | Number 1 | November 1978 | Pages 87-96
Technical Paper | Instrument | doi.org/10.13182/NT78-A32135
Articles are hosted by Taylor and Francis Online.
A mathematical model for ex-core detector response in pressurized water reactor (PWR) configurations is presented, based on the use of a spatial weighting function that is independent of core power distribution. The spatial weighting function is derived equivalently using a point kernel model and from numerical solutions of the adjoint neutron transport equation. These methods are verified through the use of experimental thermal flux data for deep penetration in water and metal media. An adjoint ANISN weighting function calculation for a one-dimensional cylindrical PWR model also shows good agreement with an equivalent point kernel calculation. Weighting function calculations using the point kernel method for a detailed three-dimensional model based on the Indian Point Unit 2 Reactor indicate that 91% of ex-core detector response is due to the five fuel assemblies nearest the detector. We believe that the weighting functions obtained with the point kernel method represent reliable information that can be used in the analysis of ex-core detector response during reactor operations.
