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Division Spotlight
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott 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
Jun 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
July 2025
Nuclear Technology
Fusion Science and Technology
Latest News
Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
19th International Conference on Probabilistic Safety Assessment and Analysis (PSA 2025)
Dr. Matthew Humberstone is a Senior Reliability and Risk Analyst in the Division of Risk Analysis at the United States Nuclear Regulatory Commission (USNRC). Dr. Humberstone works in the Performance and Reliability Branch in the Office of Nuclear Regulatory Research (RES) which uses risk assessments and insights to support a broad range of regulatory applications. Dr. Humberstone joined the US NRC in 2010 in the advanced reactor projects division and has since held several different positions including project manager, reactor analyst, and reliability and risk analyst. In his current role, Dr. Humberstone is the NRC’s representative on the American Nuclear Society (ANS)/American Society of Mechanical Engineers (ASME) Joint Committee of Nuclear Risk Management (JCNRM), representing the NRC on probabilistic risk assessment (PRA) standard development and endorsements.
Before joining the NRC, Dr. Humberstone worked on advanced monitoring, diagnostics, and prognostics for advanced reactor designs. He also worked at Sandia National Laboratories in their advanced reactor concepts division while in school. Dr. Humberstone received his bachelor’s degree in engineering physics from New Mexico State University, a master's degree in statistics from the University of Tennessee, and a master’s degree and Ph.D. in nuclear engineering from the University of Tennessee.
Last modified June 5, 2025, 1:21pm CDT
