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
Oct 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
November 2025
Nuclear Technology
October 2025
Fusion Science and Technology
Latest News
The journey of the U.S. fuel cycle
Craig Piercycpiercy@ans.org
While most big journeys begin with a clear objective, they rarely start with an exact knowledge of the route. When commissioning the Lewis and Clark expedition in 1803, President Thomas Jefferson didn’t provide specific “turn right at the big mountain” directions to the Corps of Discovery. He gave goal-oriented instructions: explore the Missouri River, find its source, search for a transcontinental water route to the Pacific, and build scientific and cultural knowledge along the way.
Jefferson left it up to Lewis and Clark to turn his broad, geopolitically motivated guidance into gritty reality.
Similarly, U.S. nuclear policy has begun a journey toward closing the U.S. nuclear fuel cycle. There is a clear signal of support for recycling from the Trump administration, along with growing bipartisan excitement in Congress. Yet the precise path remains unclear.
Shih-Jen Wang, Chun-Sheng Chien, Jung-Yuh Jang
Nuclear Technology | Volume 103 | Number 1 | July 1993 | Pages 131-137
Technical Note | Reactor Operation | doi.org/10.13182/NT93-A34836
Articles are hosted by Taylor and Francis Online.
To apply fast and accurate simulation techniques to Taiwanese nuclear power plants, plant analyzer technology was transferred to Taiwan from the Brookhaven National Laboratory (BNL) through a cooperative program. The Chinshan plant analyzer was developed based on the BNL boiling water reactor plant analyzer. The simulation speed of the Chinshan plant analyzer is eight times faster than real time. The detail analysis process of the turbine trip transient is demonstrated. The self-initialization procedure automatically generates the desired plant conditions. These plant conditions are saved in a file and read directly for the simulation. The simulation is started by inputting the start time of the turbine trip from the keyboard of a personal computer. The simulation results are shown instantaneously on the screen of a Micro-VAX II workstation. A comparison of the calculated system response with the plant data indicates good agreement. The sequence of events is also close to that of the test result.
