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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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.
John F. Carew, David J. Diamond
Nuclear Technology | Volume 50 | Number 3 | October 1980 | Pages 252-256
Technical Paper | Fuel | doi.org/10.13182/NT80-A32528
Articles are hosted by Taylor and Francis Online.
An evaluation of the relationship between operating limit uncertainty allowance and fuel performance has been made. A simple analytic relation between uncertainty allowance and the number of fuel rods exceeding fuel limits due to measurement uncertainties has been derived. An evaluation of this relation for selected and bounding power distributions indicates that the expected fraction of the core challenging fuel limits is strongly dependent on (a) the operating power distribution and (b) the estimates of measurement uncertainties used in determining the operating limit uncertainty allowance. Also, the various (1-sigma, 2-sigma, 95/95, etc.) criteria used in selecting uncertainty allowance are found to differ significantly in terms of the number of rods that exceed fuel limits.
