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
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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
Dec 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
January 2026
Nuclear Technology
December 2025
Fusion Science and Technology
November 2025
Latest News
AI at work: Southern Nuclear’s adoption of Copilot agents drives fleet forward
Southern Nuclear is leading the charge in artificial intelligence integration, with employee-developed applications driving efficiencies in maintenance, operations, safety, and performance.
The tools span all roles within the company, with thousands of documented uses throughout the fleet, including improved maintenance efficiency, risk awareness in maintenance activities, and better-informed decision-making. The data-intensive process of preparing for and executing maintenance operations is streamlined by leveraging AI to put the right information at the fingertips for maintenance leaders, planners, schedulers, engineers, and technicians.
K. S. Smith, K. R. Rempe
Nuclear Science and Engineering | Volume 100 | Number 3 | November 1988 | Pages 324-331
Technical Paper | doi.org/10.13182/NSE88-A29046
Articles are hosted by Taylor and Francis Online.
The QPANDA nodal models, which are embodied in the SIMULA TE-3 code, have been extensively tested and benchmarked. Comparisons to quarter-core PDQ depletion calculations demonstrate the high degree of accuracy with which power distributions are predicted, even though SIMULA TE-3 contains no user-adjusted normalizations. The QPANDA pin power reconstruction model is introduced, and comparisons (versus CASMO colorset and PDQ quarter-core calculations) demonstrate that accurate pin power distributions are obtained by modulating the intranodal power distributions with single-assembly CASMO pin power distributions. Comparisons of SIMULATE-3 calculations to measured reactor fission rate integrals are presented. Also, the overall accuracy of the CASMO-3 cross sections, the QPANDA nodal model, and the QPANDA pin power reconstruction model is demonstrated.
