Dr. Xun Jia received his Ph.D. degree in physics in 2009 from the University of California Los Angeles, and postdoctoral training in medical physics from the Department of Radiation Oncology and Applied Sciences, University of California San Diego in 2009-2011. Prior to joining Johns Hopkins University in 2022, he was Professor and Associate Vice Chair of Medical Physics Research in the Department of Radiation Oncology, University of Texas Southwestern Medical Center, and the founding Director of CAMPEP-accredited Medical Physics graduate program there. Over the years, Dr. Jia has conducted productive research on cone beam CT reconstruction, GPU-based Monte Carlo radiation transport simulation, deep-learning based image processing and radiotherapy treatment planning, and development of preclinical small animal radiation research technologies. He has published over 150 peer-reviewed manuscripts. His research has been funded by federal, state, industrial, and charitable funding agencies. Dr. Jia currently serves as an Executive Editorial board member of Physics in Medicine and Biology journal, and Associate Editor of Medical Physics journal and a few other journals. He is the recipient of John Laughlin Young Scientist Award of American Association of Physicists in Medicine in 2017.