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.
Explore membership for yourself or for your organization.
Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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
Sep 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
October 2025
Nuclear Technology
September 2025
Fusion Science and Technology
Latest News
High temperature fission chambers engineered for AMR/SMR safety and performance
As the global energy landscape shifts towards safer, smaller, and more flexible nuclear power, Small Modular Reactors (SMRs) and Gen. IV* technologies are at the forefront of innovation. These advanced designs pose new challenges in size, efficiency, and operating environment that traditional instrumentation and control solutions aren’t always designed to handle.
Ken Muramatsu, Kunihisa Soda
Nuclear Technology | Volume 87 | Number 4 | December 1989 | Pages 907-911
Technical Paper | TMI-2: Decontamination and Waste Management / Nuclear Safety | doi.org/10.13182/NT89-A27684
Articles are hosted by Taylor and Francis Online.
The hydrogen burn that occurred in the Three Mile Island Unit 2 (TMI-2) accident raised a concern on the possible threat to the containment integrity of a light water reactor during a severe accident, and a great deal of analytical and experimental studies were conducted after the accident. To properly assess the hydrogen behavior in the TMI-2 accident, thermal-hydraulic response in the containment needs to be adequately described. The purpose of the present study was to estimate the thermal-hydraulic response during the hydrogen burn in the TMI-2 accident by using the CONTAIN1.1 code. It was concluded from the present analysis that the hydrogen behavior was reasonably well predicted by using CONTAIN1.1 with adequately selected set of parameters in the hydrogen burn model.