He is a directorate fellow in the Nuclear Science and Technology Department at Idaho National Laboratory (INL). With a career spanning nearly 40 years at INL, he has extensive experience in many key areas of computational methods research and model development, including nonlinear thermo-mechanics, fracture mechanics, shock wave and detonation, and thermal plasma spray. From 2009 to 2016, he led the team developing BISON, INL’s state-of-the-art nuclear fuel performance code, which is currently in use at numerous national and international laboratories and nearly 20 universities with growing acceptance in industry. He holds bachelor’s and master’s degrees from Brigham Young University and a doctorate from the University of Idaho, all in mechanical engineering. He is an affiliate professor at the University of Idaho and has served as adviser to numerous graduate students. He is the author or co-author of approximately 180 scientific publications, including over 50 peer-reviewed journal articles, and has several thousand citations to his work.
He is a research and development scientist at Idaho National Laboratory (INL) leading the Engineering Scale Nuclear Fuel Simulation team. His work focuses mainly on the development of INL’s nuclear fuel performance code, BISON, and on advanced modeling of fission gas behavior in nuclear fuel. He earned his master’s and doctorate degrees in nuclear engineering from Politecnico di Milano, Italy. He has 10 years of experience in nuclear fuel modeling and simulation. Prior to INL, he worked at the European Commission in Karlsruhe, Germany, and the Halden Reactor Project in Norway. His research encompasses various areas of nuclear fuel modeling, including fission gas release and swelling in oxide fuels, fuel rod performance during design-basis reactor accidents, and modeling of accident-tolerant fuel concepts, including uranium silicide fuel and iron-chromium-aluminum steel claddings.
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