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
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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.”
Seung Ki Shin, Taekkyu Kim, Sang Mun Seo, Jinkyun Park (KAERI)
Proceedings | Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technolgies (NPIC&HMIT 2019) | Orlando, FL, February 9-14, 2019 | Pages 839-849
Safety systems of nuclear facilities should be designed to meet various design criteria considered necessary to ensure the safety of the facility over its entire service life, and it should be demonstrated that these safety requirements are fulfilled. This paper assesses the safety design of the reactor protection systems in the Jordan Research and Training Reactor. The design of the reactor protection system is evaluated in terms of reliability using qualitative and quantitative analyses. In addition, an engineering evaluation of potential software common cause failures is performed to determine whether vulnerabilities to the digital safety system software common cause failures have been adequately addressed in the design of instrumentation and control systems. The safety systems of research reactors, such as the reactor protection system, should be designed to be highly reliable to achieve the required safety functions during any design basis event. The level of safety of those systems can be evaluated using the appropriate safety assessment methods described in this paper.