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
Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
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!
Latest Magazine Issues
Jul 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
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.”
Gareth Fletcher, Sofia Guerra, (Adelard LLP)
Proceedings | Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technolgies (NPIC&HMIT 2019) | Orlando, FL, February 9-14, 2019 | Pages 1610-1619
Several con trol and monitoring applications are implemented using commercial off the shelf (COTS) PLCs that were not necessarily developed according to nuclear standards. The UK nuclear regulatory regime requires that a safety case be developed to justify and communi cate their safety. Typically, the assessment of COTS components has been done with a focus on standards compliance compliance to accepted practice was deemed to imply adequate safety. However, there may be a number of difficulties with justifying COTS pr oducts related to limited knowledge of the internal structure of the components or their development processes, especially when the supplier of the PLC platform is not willing to provide the necessary information to complete a compliance case. This paper d escribes a claim based approach to the justification of COTS PLC components using Cogs , developed in a project funded by the UK nuclear industry The approach ? focuses on the behaviour of the system rather than on the process followed to develop the PLC pla tform ? structures the justification around behaviour attributes (such as functionality, performance and reliability) and considers them in terms of the application and/or platform ? uses information about the platform that is likely to be publicly available f rom the supplier