Harold Li, PhD

Professor of Radiation Oncology

Additional Titles

  • Chief of External Beam Medical Physics Service


  • BS, Solid State Electronics: Huazhong University of Science and Technology, Wuhan, China (1992)
  • MS, Materials Science: Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China (1995)
  • PhD, Materials Science: Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany (2001)
  • Medical Physics Residency: Department of Radiation Oncology, University of Florida, Gainesville, FL (2004)

Board Certifications

  • Certified by the American Board of Radiology in Therapeutic Physics (2006)


Dr. H. Harold Li received his Ph.D. in Materials Science from Friedrich-Alexander-Universität Erlangen-Nürnberg in Erlangen, Germany in 2001. After a postdoctoral appointment at Vanderbilt University and a medical physics residency at the University of Florida, he joined Washington University in St. Louis in 2004 where he is currently Professor and Chief of External Beam Medical Physics Service. He has been a member of multiple subcommittees and task groups of the AAPM. He has supervised more than 10 graduate students and postdoctoral researchers and contributed toward training over 30 medical physics residents. Dr. Li has written over 70 peer reviewed publications and is an Associate Editor of Medical Physics. He has been Principal Investigator of multiple NIH grants and served as Scientific Reviewer on NIH dosimetry study sections. His contributions to the field include developing high resolution electronic films for IMRT/IMPT dosimetry and experimental and computational dosimetry techniques for online adaptive MRgRT.


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