2024 ANS Student Conference

Jess Gehin

Nuclear Science and Technology directorate

Idaho National Laboratory

Dr. Jess Gehin is the associate lab director for the Nuclear Science and Technology directorate. Gehin originally joined INL in 2018 as the chief scientist for the NS&T directorate, bringing nearly 30 years of experience in reactor core physics and technologies to the lab. He also serves as the National Technical Director of the DOE Office of Nuclear Energy’s Microreactor Program. Dr. Gehin worked at ORNL (Oak Ridge National Laboratory) from 1992 to 2018, where he held several positions, including Director of the Consortium for Advanced Simulation of Light Water Reactors (CASL). CASL is a DOE Energy Innovation Hub located at ORNL. In that role, Gehin held leadership responsibilities for reactor technology integration, nuclear energy programs, and reactor analysis. His academic experience includes previous positions as Associate Professor at the University of Tennessee and in teaching and advising students. Dr. Gehin earned a B.S. degree in nuclear engineering from Kansas State University and M.S. and Ph.D. degrees in nuclear engineering from the Massachusetts Institute of Technology.