Keith Griffin Appointed Tenure-Track Investigator in Radiation Epidemiology Branch
Keith T. Griffin, Ph.D., M.S., was appointed as a tenure-track investigator in the Radiation Epidemiology branch (REB) in September 2026. Dr. Griffin’s research focuses on the computational modeling of radiation exposures to facilitate epidemiological studies on the radiation dose-response relationship with cancer and other long-term health risks.
Dr. Griffin joined DCEG as a postbaccalaureate fellow in June 2017, transitioned to predoctoral fellow in January 2020, and was promoted to postdoctoral fellow in August 2022. His research portfolio includes the development of new techniques in medical radiation dose reconstruction for patients treated with radiotherapy and for patients undergoing fluoroscopic procedures. Within the National Cancer Institute’s Pediatric Proton and Photon Therapy Comparison Cohort, he has developed such techniques for patients treated with proton therapy. He has also made significant contributions to the latest organ dosimetry module for the Japanese atomic bomb survivors cohort managed by the Radiation Effects Research Foundation.
As a tenure-track investigator, Dr. Griffin’s research will prioritize the development of new exposure assessment methodology for therapeutic medical radiation procedures, including charged particle radiotherapy and interventional fluoroscopy. By integrating electronic medical record data with Monte Carlo simulation techniques, he aims to improve epidemiological cancer risk estimates by conducting highly individualized and accurate exposure assessment modeling. He will expand on his prior work in both research areas to execute dosimetry for large-scale studies, leveraging the power of the National Institutes of Health’s Biowulf supercomputing cluster. Over time, his goal is to form interdisciplinary collaborations that facilitate new epidemiological investigations on the risks from historical, contemporary, and emerging medical radiation exposures.
Dr. Griffin earned his M.S. (2016) and Ph.D. (2022) in nuclear engineering, with a minor concentration in medical physics, from the Georgia Institute of Technology. For his dissertation research, he developed an automated workflow to perform retrospective dosimetry for pediatric patients who underwent passive scattering proton therapy.