Jeffrey F. Williamson, Ph.D., professor and division chair of Medical Physics, received his Ph.D. in biophysical sciences in 1982 from the University of Minnesota in Minneapolis. Prior to coming to VCU’s Massey Cancer Center, he was a senior faculty member in the Department of Radiation Oncology at Washington University School of Medicine in St. Louis, Mo., where he solidified his national reputation as an innovative researcher in brachytherapy. Dr. Williamson has several National Institutes of Health — funded projects in the physics of this modality and is currently looking at novel methods for using imaging technology to improve the planning and delivery of brachytherapy to patients. One of his primary goals with this research is to extend the well-established role of Monte Carlo simulation as an accurate dosimetry tool to individual treatment planning. Dr. Williamson is also working in the area of deformable image registration. The goal of this research is to model distortion and movement of internal organs due to brachytherapy applicator insertion, tumor regression and changes in patient position. Telephone: (804) 828-8451; e-mail: jwilliamson@mcvh-vcu.edu