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
Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
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
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.
F. Tovesson, T. S. Hill
Nuclear Science and Engineering | Volume 159 | Number 1 | May 2008 | Pages 94-101
Technical Paper | doi.org/10.13182/NSE07-55
Articles are hosted by Taylor and Francis Online.
An experimental program has been developed at Los Alamos Neutron Science Center to precisely measure fission cross sections relevant to advanced nuclear reactor designs and transmutation concepts. The first completed measurement is of 237Np(n,f), and the subthreshold part of the measurement is reported here. The JENDL-3.3 evaluation agrees well with the experimental results in the unresolved resonance region, where a discrepancy between the ENDF/B-VI and JENDL-3.3 evaluations exists.
