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Faculty Bios

The interdisciplinary Medical Physics Programs provide students pursuing their medical physics studies with the opportunity to work closely with faculty in the departments of Physics and Astronomy, Radiology, Bioengineering and Radiation Oncology. Faculty members also provide students with both research and practicum opportunities.

The following professors currently teach courses in the Medical Physics Programs:

From the Department of Radiation Oncology

  • Director of the Medical Physics Programs, University of Pennsylvania
    Assistant Professor of Radiation Oncology, Department of Radiation Oncology, University of Pennsylvania
    Medical Physicist, Department of Radiation Oncology, Hospital of the University of Pennsylvania

    Dr. Finlay is certified by the American Board of Radiology, and his research interests include photodynamic theory. Dr. Finlay holds a BA in Physics and Math from Alfred University and an MA and PhD in Physics from the University of Rochester. He teaches PHYS 582: Medical Radiation Engineering.

  • Assistant Professor of Radiation Oncology, Department of Radiation Oncology, University of Pennsylvania
    Fellow, American Association of Physicists in Medicine

    Dr. Avery is certified by the American Board of Radiology.. He holds a BS in Physics from Millersville University and an MS and PhD in Experimental Nuclear Physics from Hampton University. Dr. Avery coordinates/teaches MMP 506: Physics of Radiation Therapy and MMP 507: Physics of Medical/Molecular Imaging.

  • Assistant Professor of Radiation Oncology, Department of Radiation Oncology, University of Pennsylvania

    Dr. Ainsley is board certified by the American Board of Radiology. He earned a BA and MA in Natural Sciences; an MS in Experimental & Theoretical Physics; and a PhD in Experimental Particle Physics from University of Cambridge, United Kingdom. Dr. Ainsley’s research focuses on the accurate implementation of proton therapy. He teaches MMP 506: Physics of Radiation Therapy.

  • Assistant Professor of Radiation Oncology, Department of Radiation Oncology, University of Pennsylvania

    Dr. Diffenderfer earned a BS in Physics from The Evergreen State College, and an MS in Physics and PhD in Nuclear Physics from Florida State University. He is board certified by the American Board of Radiology. Dr. Diffenderfer’s research interests center on proton therapy physics and radiation physics for biological systems. He teaches MMP 501: Introduction to Radiation Protection and MMP 502: Medical Ethics/Governmental Regulation. 

  • Associate Professor of Clinical Radiation Oncology, Department of Radiation Oncology, University of Pennsylvania

    Dr. Levin earned a BA in Psychbiology from Franklin and Marshall College, an MS in Physiology from Georgetown University and an MD from the Sackler School of Medicine, Israel. He is board certified by the American Board of Radiology. Dr. Levin’s research focuses on the treatment of sarcoma and thoracic malignancies. He teaches MMP 511: Image-Based Anatomy. 

  • Assistant Professor of Radiation Oncology, Department of Radiation Oncology, University of Pennsylvania

    Dr. Lin holds an MS in Applied Physics from Shanghai Jiaotong University, China, and an MS and PhD in Medical Physics from University of Wisconsin-Madison. He is board certified by the American Board of Radiology. Dr. Lin’s research interests include development of fast Monte Carlo dose calculation/plan adaptation to model and mitigate beam line and motion and imaging uncertainties in pencil beam scanning proton therapy. He teaches MMP 506: Physics of Radiation Therapy. 

  • Adjunct Assistant Professor of Radiation Oncology, Department of Radiation Oncology, University of Pennsylvania

    Dr. Mooij earned a BS in Physics; an MS in Experimental Physics; and PhD in Nuclear Physics from Universitiy of Amsterdam, The Netherlands and an MS in Computer Science from Drexel University. Dr. Mooij teaches MMP 506: Physics of Radiation Therapy.

  • Assistant Professor of Radiation Oncology, Department of Radiation Oncology, University of Pennsylvania
    Medical Physicist, Department of Radiation Oncology, Hospital of the University of Pennsylvania
    Associate Director, Medical Physics Residency Program, Department of Radiation Oncology, Hospital of the University of Pennsylvania

    Dr. Teo is certified by the American Board of Radiology. He holds a PhD in Physics from the University of Michigan. Dr. Teo’s research interest is in the development of imaging techniques for use in radiation therapy. He teaches MMP 506: Physics of Radiation Therapy. 

  • Senior Research Investigator of Radiation Oncology, University of Pennsylvania School of Medicine

    Dr. Tuttle’s research focuses on the role of primary metabolic pathways and thiols in the cellular response to radiation response modifiers. Dr. Tuttle holds a BS in Biology from Muskingum College, an MS in Genetic Toxicology from Case Western Reserve University, and a PhD in Biochemistry from the University of Pennsylvania. Dr. Tuttle teaches MMP 512: Radiation Biology.

  • Professor of Radiation Oncology, University of Pennsylvania School of Medicine

    Dr. Zhu is certified by the American Board of Radiology in Radiation Oncology Physics. Dr. Zhu holds a BS in Electronic Engineering from Fudan University, China, and an MS in Physics, MS in Engineering and a PhD in Physics from Brown University. His research interests include external beam photon radiation transport, photodynamic therapy physics, in vivo diode dosimetry and real time dose calculation for IGRT. Dr. Zhu teaches MMP 506: Physics of Radiation Therapy. 

From the Department of Physics and Astronomy

  • Vicki and William Abrams Professor, Natural Sciences
    Professor of Physics, Physics and Astronomy Department, University of Pennsylvania

    Dr. Kamien’s research centers on problems in condensed matter theory, and is currently exploring problems in liquid crystals, foams, soft self-assembly and biological physics. He holds a BS and MS from the California Institute of Technology and a PhD from Harvard University. Dr. Kamien teaches PHYS 500: Mathematical Methods.

  • Professor of Physics, Physics and Astronomy Department, University of Pennsylvania

    Dr. Mele is a condensed matter theorist specializing in electronic phenomena in low-dimensional systems, including conducting polymers, crystal surfaces, fullerenes, carbon nanotubes and graphenes. He holds a BS in Physics from St. Joseph’s University and a PhD from the Massachusetts Institute of Technology. Dr. Mele teaches PHYS 562: Electromagnetism I and PHYS 562: Electromagnetism II.

  • Professor of Physics, Physics and Astronomy Department, University of Pennsylvania

    Dr. Nelson is currently studying the physics of artificial biomembranes, biopolymers such as DNA and other “soft” condensed matter systems. He holds an AB in Physics from Princeton University and an AM and PhD in Physics from Harvard University. Dr. Nelson teaches PHYS 516: Electromagnetic Phenomena.

  • Professor of Physics, Department of Physics and Astronomy, University of Pennsylvania

    Dr. Trodden’s research includes mapping out the space of viable models of the accelerating universe. Dr. Trodden holds an MA from Cambridge University, England and an MS and PhD from Brown University. He teaches PHYS 500: Mathematical Methods.

From the Department of Radiology

  • Associate Professor of Radiology, Hospital of the University of Pennsylvania
    Chief, Physics Section, Department of Radiology, University of Pennsylvania

    Dr. Maidment is certified by the American Board of Radiology in Diagnostic Physics. He holds a BASc in Engineering Science from the University of Toronto and a PhD in Medical Biophysics from the University of Toronto. Dr. Maidment teaches MMP 507: Physics of Medical/Molecular Imaging. 

  • Associate Professor, Department of Bioengineering
    Assistant Professor of Radiology in Bioengineering, Department of Radiology, University of Pennsylvania

    Dr. Tsourkas is an active member of the Institute for Medicine and Engineering (IME) and the Institute for Translational Medicine and Therapeutics (ITMAT), both at the University of Pennsylvania. He holds a BS in Mechanical Engineering from Cornell University, an MS in Mechanical Engineering from The Johns Hopkins University and a PhD in Biomedical Engineering through a joint program at the Georgia Institute of Technology and Emory University. Dr. Tsourkas coordinates and teaches MMP507: Medical/Molecular Imaging.

Medical Physics Program resources

Program Resources

Explore the range of resources available, from videos and residency information to student handbooks.

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Course descriptions

Course Descriptions

Read about the medical physics courses available to master's and certificate students.

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