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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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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.
Anh-Tuan Cao, Thanh-Tuan Tran, Thi-Hong-Xuyen Nguyen, Dookie Kim
Nuclear Technology | Volume 206 | Number 5 | May 2020 | Pages 743-757
Technical Paper | doi.org/10.1080/00295450.2019.1696643
Articles are hosted by Taylor and Francis Online.
This paper proposes a simplified approach for assessing and predicting the seismic risks for electrical cabinets in nuclear power plants (NPPs). The method is a combination of fragility analysis and cumulative absolute velocity (CAV) analysis. First, the high confidence of low probability of failure points from the fragility curves are defined to determine the capacity of the cabinet. Then, the potential damage to the electrical cabinet at different locations in Korea is considered via probabilistic seismic maps. Based on the capacity, a seismic risk assessment is conducted to observe the operant condition or predict the potential issues of the electrical cabinet under seismic effects.
An electrical cabinet is used as a setting for numerical simulation. The finite element model is validated against the experimental results and calibrated by using response surface methodology. Numerical results show that the operant condition of the electrical cabinet can be disturbed by probable earthquakes that have CAV values greater than the of 0.27 g‧s. This method is one way that NPP operators can follow to obtain cabinet safety regulations.