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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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
High temperature fission chambers engineered for AMR/SMR safety and performance
As the global energy landscape shifts towards safer, smaller, and more flexible nuclear power, Small Modular Reactors (SMRs) and Gen. IV* technologies are at the forefront of innovation. These advanced designs pose new challenges in size, efficiency, and operating environment that traditional instrumentation and control solutions aren’t always designed to handle.
Gregory D. Wyss, Adam D. Williams
Nuclear Science and Engineering | Volume 197 | Number 1 | June 2023 | Pages S80-S94
Technical Paper | doi.org/10.1080/00295639.2022.2129224
Articles are hosted by Taylor and Francis Online.
Providing adequate security to civilian nuclear materials and facilities exemplifies the long-standing, dynamic challenge of addressing the potential for facility damage under operational uncertainty. Estimating attack likelihood with enough precision to be useful and actionable for security risk management is philosophically, scientifically, and practically challenging. In response, this paper discusses the conceptual and analytical shortcomings of various approaches to calculating the likelihood of attack as a foundational element of security risk management. From these shortcomings emerge a set of characteristics that can guide the creation of alternative concepts that provide more robust and actionable security risk management approaches better aligned with the Ievolutionary growth in civilian nuclear facilities. Such broader conceptions would support movement from traditional interpretations of probability of attack toward more nuanced and complex depictions to enhance security risk management.