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
June 2025
Nuclear Technology
Fusion Science and Technology
May 2025
Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
Jae-Hun Lee, Woong-Sik Kim, Young Gill Yune, Jae-Seong Lee
Nuclear Technology | Volume 139 | Number 1 | July 2002 | Pages 36-41
Technical Note | doi.org/10.13182/NT02-A3301
Articles are hosted by Taylor and Francis Online.
In Korea, an evolutionary reactor called the Korean Next Generation Reactor (KNGR) is being developed. Safety and Regulatory Requirements and Guidance (SRRG) are also being developed for the regulation of the KNGR. The hierarchy of the SRRG consists of five tiers: Safety Objectives, Safety Principles (SP), General Safety Criteria (GSC), Specific Safety Requirements (SSR), and Safety Regulatory Guides.The GSC set out general and comprehensive criteria used to determine that SP are complied with in the design and to provide fundamental bases for the development of SSR.In this paper, the development approach, structure, and contents of the GSC are introduced. Particularly, the major features adopted for the safety enhancement of the GSC are addressed regarding such issues as severe accidents, human factors, shutdown and low-power operations, reliability, periodic safety review, radiation protection, and environmental-effect design bases.The GSC have been reviewed by the experts of various fields. The finalized GSC were at the preannouncement stage of the legislation process in 2001 and are expected to contribute to ensuring the enhanced safety level of the KNGR.
