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
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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
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.
Se-Woo Cheon, Han-Gon Kim, Wan-Joo Kim, Bok-Ki Min, Soon-Heung Chang, Hak-Yeong Chung
Nuclear Technology | Volume 97 | Number 1 | January 1992 | Pages 1-15
Technical Paper | Fission Reactor | doi.org/10.13182/NT92-A34621
Articles are hosted by Taylor and Francis Online.
A prototype expert system, the NSSS-DS, is described. It is used for the diagnosis of three main systems—the rod control system, the reactor coolant pumps (RCPs), and the pressurizer—in the primary system of the Kori-2 nuclear power plant. This system diagnoses system malfunctions quickly and offers appropriate guidance to operators. The method of inference applied to this system is rule-based deduction with certainty factor operation. The diagnostic symptoms include alarms, indication lamps, parameter values, and valve lineup that can be acquired at the main control room. The application of this system to the rod control system, mainly consisting of electrical components, and the RCPs, mainly consisting of mechanical components, is described from the point of view of diagnostic strategies.
