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Division Spotlight
Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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 2024
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Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
Yong Sik Kim, Ho Sun Ryu, Hyun Ki Kim (KHNP), Moon Kyoung Choi, Chan Young Lee, Poong Hyun Seong (KAIST)
Proceedings | Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technolgies (NPIC&HMIT 2019) | Orlando, FL, February 9-14, 2019 | Pages 1078-1087
The cyber security of nuclear power plants (NPPs) recently has become a big issue, and a utility is requested to comply with cyber security controls and to perform cyber security risk management. However, it is practically difficult to fully implement the security controls with limited resources. The ultimate goal of implementing cyber security controls is to reduce risk. Since it is almost impossible to reduce risk by implementing all of the controls, it is necessary to follow them in order of priority for efficiency. This means that it is required to find which cyber security controls are relatively more important and effective than the others. The goal of this study is to quantify the relative importance of NPP cyber attack probability variables. The cyber attack probability variables were investigated by a literature survey, and they were classified into two types: (1) attacker-related variables and (2) target-related variables. The factor analysis (FA) method was applied to confirm the validity of the rearrangement and classification results, and the analytical hierarchy process (AHP) method was applied to evaluate the relative importance among the variables.