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
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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
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May 2025
Latest News
ANS designates Armour Research Foundation Reactor as Nuclear Historic Landmark
The American Nuclear Society presented the Illinois Institute of Technology with a plaque last week to officially designate the Armour Research Foundation Reactor a Nuclear Historic Landmark, following the Society’s decision to confer the status onto the reactor in September 2024.
David Pickett, Yiming Pan (CNWRA), John Wise, Ricardo Torres, Darrell Dunn (NRC)
Proceedings | 16th International High-Level Radioactive Waste Management Conference (IHLRWM 2017) | Charlotte, NC, April 9-13, 2017 | Pages 410-413
To renew a U.S. Nuclear Regulatory Commission (NRC) specific license for an independent spent fuel storage installation or a certificate of compliance for a dry storage system, the applicant must conduct an aging management review (AMR) that evaluates the potential aging-related degradation of those structures, systems, and components (SSCs) determined to be within the scope of renewal. Any credible aging mechanisms and effects identified for important-to-safety SSCs must be addressed in either time-limited aging analyses (TLAAs), if applicable, or aging management programs (AMPs). To improve the effectiveness and efficiency of the renewal process, the NRC is developing guidance for its staff in reviewing AMRs and AMPs—titled the Managing Aging Processes in Storage (MAPS) Report. The report generically evaluates potential aging mechanisms for storage system components, concluding whether or not the mechanisms could affect an important-to-safety function. Aging mechanisms are evaluated for (i) casks and internal components; (ii) neutron shielding; (iii) neutron poisons; (iv) concrete overpacks and support pads, and ceramic fiber insulation; and (v) spent fuel assemblies. The report provides aging management tables that identify the component-specific aging mechanisms and consequent effects that must be managed. Finally, the report describes example AMPs that include recommended prevention, mitigation, monitoring, and inspection activities.
