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.
Explore membership for yourself or for your organization.
Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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
Jul 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
August 2025
Fusion Science and Technology
Latest News
CNL investigates alloy with potential reactor applications
A research team led by Canadian Nuclear Laboratories is studying a type of high-entropy alloy (HEA) that seems to withstand a cascade-involved irradiation environment at elevated temperatures better than stainless steel exposed to similar conditions. In a paper published in the Journal of Nuclear Materials, the researchers describe an HEA made of chromium, iron, manganese, and nickel (CrFeMnNi) that has the potential to improve the safety and functionality of nuclear reactors, as well as of spacecraft.
19th International Conference on Probabilistic Safety Assessment and Analysis (PSA 2025)
Technical Session|Panel|Sponsored by NISD
Tuesday, June 17, 2025|1:00–2:45PM CDT|Purdue/Wisconsin
Session Chair:
Karl N. Fleming
Session Organizer:
Alternate Chair:
Nathan R. DeKett
For in-scope structures, systems, and components (SSCs), applications such as the Licensing Modernization Project (NEI 18-04 Rev. 1) and Reliability Integrity Management (ASME BPVC Section XI Division 2) call for setting low-level reliability targets that collectively satisfy various higher-level risk goals and also satisfy considerations related to defense in depth. In a specific plant design application, given • a PRA, • SSC-level reliability targets, • the associated SSC-level capability requirements assumed in the PRA, and • a good understanding of the stressors and processes that degrade the constituent materials of those SSCs, the processes associated with monitoring and non-destructive examination can be formulated so as to show whether SSC-level targets are being satisfied in operation. If they are not being satisfied, satisfaction of the plant-level goals may be threatened. The reliability targets chosen clearly affect not only the safety case, but also the resource implications of the required monitoring and non-destructive examination. The process of setting reliability targets is not yet standard, and panel discussion of that topic is expected to be fruitful.
To join the conversation, you must be logged in and registered for the meeting.
Register NowLog In