Amersham), a startup company focused on the development of magnetic resonance imaging with laser-polarized He-3 and Xe-129. In addition to having published over 160 scientific papers, he is a fellow of the American Physical Society, the American Association for the Advancement of Science (AAAS), and a member of the American Academy of Arts and Sciences, the National Academy of Sciences (NAS), and the American Philosophical Society. He was awarded an Alfred P. Sloan Fellowship in 1966, an Alexander von Humboldt Award in 1976, the 1997 Broida Prize, and the 1999 Davisson-Germer Prize of the American Physical Society.


John F. Ahearne is director of the Ethics Program at the Sigma Xi Center for Sigma Xi. Dr. Ahearne serves as a lecturer in public policy at Duke University, and an adjunct scholar at Resources for the Future. His professional interests include reactor safety, energy issues, resource allocation, and public policy management. He has served as commissioner and chairman of the U.S. Nuclear Regulatory Commission (NRC), systems analyst for the White House Energy Office, deputy assistant secretary of energy, and principal deputy assistant secretary of defense. Dr. Ahearne currently serves as vice-chair of DOE’s Nuclear Energy Research Advisory Committee. He has served as chair of the National Research Council’s Board on Radioactive Waste Management. In addition, Dr. Ahearne has been active on several National Research Council committees examining issues in risk assessment. He is a fellow of the American Physical Society, AAAS, the Society for Risk Analysis, and American Academy of Arts and Sciences and is a member of Sigma Xi, the American Nuclear Society, and the National Academy of Engineering (NAE). He received his B.S. and M.S. degrees from Cornell University and a Ph.D. in physics from Princeton University.


Deborah Yarsike Ball is senior Russian political-military analyst for the Proliferation and Terrorism Prevention Program at Lawrence Livermore National Laboratory (LLNL). Her work focuses on Russian civil-military relations, military doctrine and security issues, the prevention of theft of nuclear weapons and weapon-usable nuclear material from the former Soviet Union, as well as the safety and security of Russia’s nuclear arsenal. Dr. Ball conducted a survey of former Soviet weapons of mass destruction scientists to assess the extent to which the International Science and Technology Center’s program in Russia is meeting its nonproliferation goals. Ball’s publications include: “How Safe Is Russia’s Nuclear Arsenal?” in Jane’s Intelligence Review (December 1999), “The Social Crisis of the Russian Military,” in Russia’s Torn Safety Nets (Mark G. Field and Judyth L. Twigg, eds. St. Martins, 2000) and “The State of Russian Science: Focus Groups with Nuclear Physicists” (with Theodore Gerber) in Post-Soviet Affairs (July-September 2002). She received her Ph.D. from the University of Michigan and has been a fellow at Harvard University’s Center for Science



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