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
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
August 2025
Nuclear Technology
Fusion Science and Technology
July 2025
Latest News
Hash Hashemian: Visionary leadership
As Dr. Hashem M. “Hash” Hashemian prepares to step into his term as President of the American Nuclear Society, he is clear that he wants to make the most of this unique moment.
A groundswell in public approval of nuclear is finding a home in growing governmental support that is backed by a tailwind of technological innovation. “Now is a good time to be in nuclear,” Hashemian said, as he explained the criticality of this moment and what he hoped to accomplish as president.
Sitakanta Mohanty, Richard Blake Codell
Nuclear Technology | Volume 148 | Number 2 | November 2004 | Pages 105-114
Technical Paper | High-Level Radioactive Waste Disposal | doi.org/10.13182/NT04-A3551
Articles are hosted by Taylor and Francis Online.
The key findings from a suite of independent analyses of the performance of the proposed repository at Yucca Mountain, conducted by the Center for Nuclear Waste Regulatory Analyses (CNWRA) and the U.S. Nuclear Regulatory Commission (NRC), are summarized. The analyses are geared toward obtaining risk insights from deterministic and probabilistic calculations of potential exposure to people in a down-gradient community, determining the capability of barriers to reduce flow of water and prevent or delay radionuclide transport, and identifying models, parameters, and subsystems that have the most influence on repository performance through the use of sensitivity and uncertainty analyses. The analyses have allowed the CNWRA and NRC to focus on the most critical aspects of estimating postclosure repository performance.