Dr. Jian Gan is a directorate fellow since 2017 and was the department manager of the Advanced Characterization (2015-2022) at the Idaho National Laboratory’s Materials and Fuels Complex. He was the deputy director for the Energy Frontier Research Center (EFRC) - Thermal Energy Transport under Irradiation (TETI) at INL between 2018-2020 including 3 national laboratories and 4 universities. He has been dedicated to conducting radiation effects research for the development of radiation tolerant materials for 25 years. He has extensive experience using multiple techniques such as light ions, heavy ions, in-situ ion irradiation/microscopy, and neutron irradiation to conduct research focused on the relationships between radiation damage, material microstructure, and material performance on a broad range of reactor structural materials and nuclear fuels. Dr. Gan is a recognized international expert in the nanoscale characterization of irradiated fuels and materials using transmission electron microscopy (TEM). Before joining Argonne National Laboratory-West in 2002, he did his postdoctoral fellowship at Pacific Northwest National Laboratory in 1999-2001. He was an assistant professor (1982-1987) and a lecturer (1987-1990) in Physics Department of Fudan University. He has been working as a principal researcher and a work package manager for many DOE projects and he is the member of OECD-NEA Expert Group on Innovative Structural Materials since 2013.