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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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!
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Jun 2025
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Nuclear Science and Engineering
July 2025
Nuclear Technology
June 2025
Fusion Science and Technology
Latest News
Nominations open for CNTA awards
Citizens for Nuclear Technology Awareness is accepting nominations for its Fred C. Davison Distinguished Scientist Award and its Nuclear Service Award. Nominations for both awards must be submitted by August 1.
The awards will be presented this fall as part of the CNTA’s annual Edward Teller Lecture event.
Sidney Siegel was the President of the American Nuclear Society in 1966. He originally helped organize the American Nuclear Society to promote research and engineering in nuclear technology, and was a charter member of the Society. In addition to serving as President, he also served on the ANS board for many years.
Siegel was born on January 10, 1912. He began his career at Westinghouse Electric Co. in 1938, doing early research on the effect of radiation on solids. In 1943, he became manager of magnetic research at Westinghouse. During World War II, he helped develop torpedo triggering devices and airborne radar systems, and later went to Oak Ridge to work on nuclear reactor development. At Oak Ridge, he conducted research on the first plutonium production reactors for the Manhattan Project. In 1948, he returned to the newly formed Westinghouse Atomic Power Division, where he directed physics-related activities for naval reactor development.
Siegel joined North American Aviation in 1950. Shortly after that, he served as vice president and technical director of the power systems division at Atomics International, where he directed the AEC-sponsored development of sodium- and organic-cooled power reactors to power communications satellites and other space vehicles.
He left there in 1972 to return to Oak Ridge as a deputy associate director for biomedical and environmental sciences. There, he oversaw National Science Foundation-funded research and was also responsible for AEC regulatory work on the preparation of environmental impact statements for proposed nuclear power plants. He left that position in 1975.
In addition to these positions, at various times, he was a lecturer at the University of Pittsburgh, a research associate at the California Institute of Technology, and an American representative to the Atoms for Peace Conference.
Siegel earned bachelor’s degrees in physics and mathematics in 1932, and a doctorate degree in physics in 1936 from Columbia University. He held five patents on solid-state instruments and nuclear power devices and was a fellow of the American Physical Society.
Sidney Siegel passed away on March 16, 2001.
