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.
Division Spotlight
Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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.”
Pavan Kumar Vaddi, Yunfei Zhao, Xiaoxu Diao, Carol S. Smidts (Ohio State)
Proceedings | Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technolgies (NPIC&HMIT 2019) | Orlando, FL, February 9-14, 2019 | Pages 1380-1395
The increased implementation of digital systems for instrumentation and control in nuclear power plants has given rise to a heightened risk of cyber-attacks. Given the magnitude of the consequences of cyber-attacks on nuclear power plants, it is imperative that research be focused towards detecting and responding to such events. In this paper, an event classifier to differentiate between safety events and cyber-attacks in nuclear power plants is presented. Its underlying concept is to infer the state of the system by observing both physical and network behaviors during an abnormal event and to calculate the probabilities of observing such behavior in different scenarios. These probabilities are in turn used in determining the nature of the observed abnormal event i.e., cyber or safety. The Dynamic Bayesian Networks (DBNs) methodology, which is appropriate for inferring the hidden state of the system from the observed variables through probabilistic reasoning is used to perform this task.