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Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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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 Technology
Fusion Science and Technology
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 A. Prelas, Jacob B. Romero, Earl F. Pearson
Fusion Science and Technology | Volume 2 | Number 2 | April 1982 | Pages 143-164
Overview | doi.org/10.13182/FST82-A20748
Articles are hosted by Taylor and Francis Online.
The potential of using high energy photons or nucleons for the production of synthetic fuels from inorganic resources with fusion processes is reviewed. Many types of fuels can be generated (e.g., H2, CO, NO, O3, H2S. etc) with plentiful inorganic resources; however, only H2 and CO (considered to be most important as chemical feedstocks and fuels) were thoroughly reviewed. Radiolytic efficiencies of ∼5% for H2 production from H2O and ∼30% for CO production from CO2 have been achieved with standard techniques. These values may be improved through basic research into chemical kinetics, steady-state radiolysis and photolysis, and into advanced areas such as separation, heterogeneous radiolysis, laser-enhanced radiolysis, electrochemical/radiolytic hybrids, and thermochemical/radiolytic hybrids. Due to potential radioactive contamination from the various interfaces, in the near term, two-stage radiolytic techniques (including formation of secondary carriers from excimers and radioisotopes) were considered most promising for producing synthetic fuels from inorganic resources. However, because of constraints imposed by current technology, these two-stage techniques appear most suitable for topping cycles. As advanced fueled reactors are developed, contamination problems are diminished making direct radiolysis more attractive.