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Division Spotlight
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.
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 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.
N.P. Kherani, W.T. Shmayda
Fusion Science and Technology | Volume 28 | Number 3 | October 1995 | Pages 893-898
Tritium Safety | Proceedings of the Fifth Topical Meeting on Tritium Technology in Fission, Fusion, and Isotopic Applications Belgirate, Italy May 28-June 3, 1995 | doi.org/10.13182/FST95-A30518
Articles are hosted by Taylor and Francis Online.
On the basis of the principle of gas ionization, a simple, compact and portable surface activity monitor for tritium has been conceived. Theoretical analysis suggest that the ionization surface activity monitor would have a sensitivity of about 74 Bq cm−2, this sensitivity value having being determined for a measurement surface area of 1 cm2 and current measurement limit of 1 fA. Experimentally, several proof of principle tests have been carried out demonstrating the validity and viability of the ionization surface activity monitor. The results show that the ionization surface activity monitor is a simple, direct and effective tool for the measurement of tritium activity on surfaces and in the near surface regions.
