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
Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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.
J. E. Brunings, D. G. Mason, W. B. Thomson, J. H. Van Osdol
Nuclear Technology | Volume 22 | Number 2 | May 1974 | Pages 237-251
Technical Paper | Ocean—Nuclear Energy | doi.org/10.13182/NT74-A31406
Articles are hosted by Taylor and Francis Online.
The SNAP zirconium hydride reactor developed by the U.S. Atomic Energy Commission for space applications can also be used for the generation of power in marine applications. This reactor can be coupled with thermoelectric, organic Rankine, Brayton, and supercritical CO2 power conversion systems to yield compact, long-life power systems in the power range from several kW(e) to over 150 kW(e). The thermoelectric power conversion system, although exhibiting cycle efficiencies in the 7 to 10% range, has proven long-life capability. The Brayton and the supercritical CO2 systems yield the smallest power systems, while the Brayton system yields the lightest system. The low operating temperatures and the relatively high efficiency of the organic Rankine system imply that this system exhibits the lowest unit cost.
