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
Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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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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. Deuber
Nuclear Technology | Volume 72 | Number 1 | January 1986 | Pages 39-43
Technical Paper | Nuclear Safety | doi.org/10.13182/NT86-A33750
Articles are hosted by Taylor and Francis Online.
In order to enable a realistic assessment of the 131I radiation exposure of the population living in the vicinity of light water reactors (LWRs) in normal operation, measurements were taken of the fractions of physicochemical 131I species in the stack exhaust air of five LWRs in the Federal Republic of Germany over periods of up to 3 yr. It is concluded that for these LWRs generally conservative values of the calculated 131I radiation exposure result if fractions for the radioecologically critical elemental131I and for the far less important organic 131I of 50% each are used.
