ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
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!
Latest Magazine Issues
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
May 2025
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.
F. Carre, Z. Tilliette, J. Remoleur, E. Proust
Fusion Science and Technology | Volume 4 | Number 2 | September 1983 | Pages 1101-1106
Blanket and First Wall Engineering | doi.org/10.13182/FST83-A23005
Articles are hosted by Taylor and Francis Online.
In the frame of the recent CEA studies aiming at the evaluation and the comparison of various candidate blanket concepts in view of their possible extrapolation to the commercial power reactor, the present work examines the potential interest of a 15 MPa pressurized water cooled Li17Pb83 blanket. After a brief presentation of the main reactor parameters, the body of the paper is devoted to the engineering optimization of the blanket arrangement, in terms of tritium breeding (minimization of the water content), coolant manifolding (minimum coolant cross section, minimum number of connections and easy access for maintenance) and adaptation to the steep power and irradiation gradients, typical of Li17Pb83 and crucial for a power reactor. Poloidal cooling direction, long heated length and segmentation into the radial direction (breeder rows) provide some answers to these preoccupations and could be recommended for the next step liquid blanket studies, in order to anticipate the requirements of the commercial reactor.