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Radiation Physics
Scott Hadley, PhD

Assistant Professor


Hadley_ScottScott Hadley, PhD:
Assistant Professor


Dr. Hadley graduated from the University of Chicago Graduate Program in Medical Physics in 2002 after completing his dissertation titled Video-Based Patient Positioning for External Beam Radiation Therapy. Soon after, he started as the inaugural medical physics resident at the University of Michigan Department of Radiation Oncology.

As an Assistant Professor at the University of Michigan, Dr. Hadley splits his time between clinical care, research, and teaching. His clinical service focuses on image guided radiotherapy (IGRT) with a special focus on abdominal tumors in the liver and pancreas. Dr. Hadley also leads the stereotactic body radiotherapy (SBRT) team.

Clinical Service

Research Interests

Dr. Hadley has diverse research interests. A major focus has been on the impact of internal organ motion on the accuracy of prostate intensity modulated radiotherapy (IMRT) treatments. Another interest is the impact and use of treatment control systems (TCS) on patient safety. In this area, Dr. Hadley studied the trade-off between human users and computer controlled automatic checks to assure safe and accurate radiotherapy treatments.


Teaching activity centers on the Medical Physics Residency program. Dr. Hadley mentors physics residents on clinical rotations center, on special procedures, as well as routine radiotherapy needs. He also spends time on lectures, particle interaction, and X-Ray production for the radiation therapy technologist (RTT) program from the University of Michigan - Flint campus.

Recent Publications

Hadley, S. W., Balter, J. M., & Lam, K. L. (2009). Analysis of couch position tolerance limits to detect mistakes in patient setup. J Appl Clin Med Phys, 10(4), 2864.

Litzenberg, D. W., Hadley, S. W., Lam, K. L., & Balter, J. M. (2007a). A precision translation stage for reproducing measured target volume motions. Journal of applied clinical medical physics / American College of Medical Physics, 8(3), 2221.

Litzenberg, D. W., Hadley, S. W., Tyagi, N., Balter, J. M., Haken, Ten, R. K., & Chetty, I. J. (2007b). Synchronized dynamic dose reconstruction. Medical Physics, 34(1), 91–102.

Hadley, S. W., & Lam, K. (2006). Light field and crosshair quality assurance test using a simple lens system. Medical Physics, 33(4), 930–932.

Litzenberg, D. W., Balter, J. M., Hadley, S. W., Sandler, H. M., Willoughby, T. R., Kupelian, P. A., & Levine, L. (2006). Influence of intrafraction motion on margins for prostate radiotherapy. International Journal of Radiation Oncology* Biology* Physics, 65(2), 548–553. doi:10.1016/j.ijrobp.2005.12.033

Hadley, S. W., Kelly, R., & Lam, K. (2005). Effects of immobilization mask material on surface dose. Journal of applied clinical medical physics / American College of Medical Physics, 6(1), 1–7.

Johnson, L. S., Milliken, B. D., Hadley, S. W., Pelizzari, C., Haraf, D. J., & Chen, G. T. (1999). Initial clinical experience with a video-based patient positioning system. International Journal of Radiation Oncology* Biology* Physics, 45(1), 205–213.

Morgan, N., Abashian, A., Gotow, K., Hadley, S. W., & Haim, D. (1994). Polyvinylchloride resistive plate counters for charged particle detection. Nuclear Instruments and Methods in Physics Research Section ….

Willoughby, T. R., Kupelian, P. A., Pouliot, J., Shinohara, K., Aubin, M., Roach, M., Skrumeda, L. L., et al. (2006). Target localization and real-time tracking using the Calypso 4D localization system in patients with localized prostate cancer. International Journal of Radiation Oncology* Biology* Physics, 65(2), 528–534. doi:10.1016/j.ijrobp.2006.01.050

Scott Hadley, PhD, Assistant Professor

Phone (734) 764-7396
Fax (734) 936-7859
Mail University of Michigan Hospital and Health Systems
Department of Radiation Oncology
UHB2 C432G
1500 East Medical Center Dr.
UH B2 C438, SPC 5010
Ann Arbor, MI 48109

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