C.M. Charlie Ma, Fox Chase Cancer Center (IMAGE) Fox Chase Cancer Center Caption This is C.M. Charlie Ma, Ph.D., Professor, Vice Chair of the Department of Radiation Oncology, and Director of Medical Physics at Fox Chase Cancer Center. Credit Fox Chase Cancer Center Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.