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Meeting 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!
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August 2025
Nuclear Technology
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July 2025
Latest News
The U.S. Million Person Study of Low-Dose-Rate Health Effects
There is a critical knowledge gap regarding the health consequences of exposure to radiation received gradually over time. While there is a plethora of studies on the risks of adverse outcomes from both acute and high-dose exposures, including the landmark study of atomic bomb survivors, these are not characteristic of the chronic exposure to low-dose radiation encountered in occupational and public settings. In addition, smaller cohorts have limited numbers leading to reduced statistical power.
Peter Yarsky, Kevin Coyne, Cynthia Taylor, Chad Oelstrom
Nuclear Technology | Volume 211 | Number 2 | February 2025 | Pages 358-376
Research Article | doi.org/10.1080/00295450.2024.2326375
Articles are hosted by Taylor and Francis Online.
Risk plus Some Attributes (R + SA) is a method that risk informs the prioritization of inspection activities related to new fuel cycle facility construction. The method uses information available in the Integrated Safety Analysis (ISA) summary to compute the risk-informed importance score of each item relied on for safety (IROFS) referenced in the ISA summary. The approach is based on approximating the risk for each accident sequence and then apportioning that risk to IROFSs associated with that sequence. Once the IROFS risk-informed importance score is computed, the importance score can be adjusted to account for other factors besides the risk. These other factors capture attributes of the IROFSs that affect the prioritization they should receive for inspection. An example of an attribute is the complexity of the IROFSs; complex as opposed to simple IROFSs warrant a higher inspection priority. This paper provides a description of the theoretical and mathematical framework of the R + SA methodology.