He is currently Director of Physics Research, Medical Physics division. He earned a PhD in Material Sciences specializing in radiation detectors for medical applications in 2001 from Friedrich-Alexander-Universität in Nürnberg in Erlangen, Germany and joined the faculty in 2004 after completing a residency in medical physics at the University of Florida. He is certified in Therapeutic Radiological Physics by the American Board of Radiology. Dr. Li’s main research interests are materials and devices for radiation therapy dosimetry and radiation therapy under real-time MRI guidance.