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May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Reimagining nuclear materials for the future of medicine
Nuclear medicine has come a long way since Henri Becquerel first observed the penetrating energy of radioactive materials in 1896. Today, technetium-99m alone is used in more than 40 million diagnostic procedures every year—from cardiovascular imaging and bone scans to cancer detection—making it the undisputed workhorse of nuclear medicine. That single statistic tells you something important: An enormous portion of modern diagnostic medicine rests on a surprisingly narrow foundation, one built around a small number of aging research reactors that were never originally designed for continuous isotope production.
John Graham joined ANS in 1970. He was a Fellow and served as treasurer before becoming the 41st president of the Society. He was active in the Aerospace Nuclear Science and Technology Division, as well as the Nuclear Installations Safety Division.
He was been engaged in nuclear safety for 60 years, including ongoing work with the Pacific Nuclear Council on promotion of peaceful uses of nuclear technologies, since 1997. Graham began a career with Westinghouse in 1969 as Manager of Nuclear Safety at Westinghouse Advanced Reactors Division, Madison, Wisc., with responsibility for safety of the Clinch River Breeder Reactor in Tennessee, among other projects. In 1985, he became the Licensing Manager for the Basalt Waster Isolation Project.
After he left Westinghouse, he was named the Director of Nuclear Safety for Atomic Energy of Canada Limited (AECL) until 1992, when he became vice-president of British Nuclear Fuels (BNFL). He also worked for the U.K. Atomic Energy Agency as a senior scientist and for the Atomic Energy of Canada Research for British Nuclear Fuels as a Director of Safety. He was a recognized Fellow at Westinghouse.
He earned a BS in mathematics from the University of Wales, with graduate work at the University of Illinois and the University of London.
He wrote Fast Reactor Safety in 1971 and authored 25 other books.
Read Nuclear News profile from July 1995 for more on John.