is a consulting physicist and an adjunct professor at Emory University’s Rollins School of Public Health. He began his career as a research physicist at the former RCA Space Center in Princeton, New Jersey, and later became associate research professor at the University of Utah School of Medicine. He was founding chief of the Radiation Studies Branch at the U.S. Centers for Disease Control and Prevention (CDC), where he also held a Distinguished Scientist appointment. In 1994 he received the U.S. Public Health Service Superior Service Award for establishing CDC as major international focus for radiation studies.

Dr. Smith has consulted on nuclear threat countermeasures for the International Atomic Energy Agency in Vienna, the White House Office of Science and Technology Policy, and the G-7 Global Health Security Action Group. He traveled extensively advising public health officials and nongovernmental organizations in the aftermath of Chernobyl and Fukushima nuclear crises. Currently, he is staff consultant to NCRP’s Scientific Committee on Emergency Responder Dosimetry. He received his MS in theoretical physics and PhD in experimental physics from West Virginia University and completed his post-doctoral research at Florida State University’s Institute of Molecular Biophysics.