Advances in Nuclear Nonproliferation Technology and Policy Conference (ANTPC 2025)

Dr. Sunil S. Chirayath

Distinguished R&D Scientist

Oak Ridge National Lab

Dr. Sunil S. Chirayath is a Distinguished R&D Scientist at Oak Ridge National Laboratory (ORNL). Prior to joining ORNL in January 2024, he held positions from postdoctoral fellow to tenured full professor in the Department of Nuclear Engineering at Texas A&M University during 2007-2024. He is a nuclear security and nonproliferation specialist with over 17 years of educational and research experience nuclear science and engineering. He has additional 16 years of work experience in India as a nuclear safety regulator. He has taught courses and conducted workshops on nuclear fuel cycles and nuclear safeguards, Monte Carlo radiation transport, nuclear nonproliferation and arms control, physical protection system design, and human reliability program. He has published over 80 peer reviewed journal articles, over 160 conference articles/presentations, over 25 invited lectures, and an edited volume on Human Reliability Program in Industries of National Importance for Safety and Security. Dr. Chirayath received his Ph.D. in Physics from University of Madras in 2005, M.Sc. and B.Sc. in Physics from University of Calicut in 1994 and 1989, respectively. He has chaired doctoral and thesis committees of over 50 graduate students. He is a Fellow of the Institute of Nuclear Materials Management. He held various position in INMM, including Executive Committee Member, Chair-Nonproliferation and Arms Control Division, President and Vice-President of the Southwest Professional Chapter, and Faculty Advisor of the Texas A&M student chapter. He held various positions in American Nuclear Society (ANS) including, Chair-Radiation Protection & Shielding Division (RPSD), Vice-Chair-Book Publishing Committee, Executive Committee Member of Nuclear Nonproliferation Policy Division (NNPD) and RPSD.