Bio sketch and research interests: Dr. Murphy received his Ph.D. in physics from the University of Chicago in 1980. Subsequently, he held research posts in nuclear physics, astrophysics, X-Ray and gamma-ray astronomy at UC/Berkeley's Lawrence Radiation Laboratory, the University of Washington, and the Lockheed Space Sciences Laboratory in Palo Alto CA. In 1992, Dr. Murphy became involved in research and development for the CyberKnife, a robotic image-guided radiosurgical system invented at Stanford University to treat cancer and central nervous system lesions. In 2003, he moved from Stanford, where he was a senior research scientist, to join the Medical Physics faculty at VCU. His research interests are in image fusion, computer-guided medical image segmentation, real-time image processing and registration, and machine vision applied to radiotherapy. The goal of his research is to develop fast, automatic image-guided procedures for the planning and delivery of radiation treatments via both external beams and brachytherapy.