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
Materials Science & Technology
The objectives of MSTD are: promote the advancement of materials science in Nuclear Science Technology; support the multidisciplines which constitute it; encourage research by providing a forum for the presentation, exchange, and documentation of relevant information; promote the interaction and communication among its members; and recognize and reward its members for significant contributions to the field of materials science in nuclear technology.
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.
H. Karwat
Nuclear Technology | Volume 46 | Number 3 | December 1979 | Pages 546-558
Technical Paper | Nuclear Power Reactor Safety / Reactor | doi.org/10.13182/NT79-A32365
Articles are hosted by Taylor and Francis Online.
The design of engineered safety systems is primarily based on analytical predictions of the behavior of a reactor under accident conditions and on the result of relevant small-scale experiments. Within this frame, the analytical simulation of two-phase flows plays an important role. It serves as a model law for the extrapolation of small-scaled experimental results over magnitudes of scaling as well as for the detailed interpretation of involved physical processes. A careful description of the technical conditions of an experiment is mandatory for making two-phase flow analytical simulations a successful tool for transforming small-scale experimental results into design decisions for large power reactor systems.
