Dr. Hamilton earned his undergraduate degree in physics at the University of Illinois. He then earned his graduate and doctorate degrees in physics at Stanford University. He completed a fellowship in radiation and cellular oncology at the University of Chicago in 1994, where he served as assistant professor of radiation and cellular oncology, becoming director of physics in 2002.
Dr. Hamilton was appointed associate professor and head of the Department of Radiation Oncology physics section at the University of Arizona in October of 2002. Dr. Hamilton's objective is excellence in clinical service, education and research. His clinical focus is in improving patient care by incorporating technological innovations into routine radiation therapy clinical practice. Dr. Hamilton considers the education of future generations to be of paramount importance. He provides classroom instruction at undergraduate, graduate and medical resident levels, and practical clinical training for physicists and medical dosimetrists. Undergraduates, graduates and postdoctoral students have participated in his research projects.
Dr. Hamilton's general research is in the application of mathematical methods to problems in radiation therapy. He is currently investigating phenomenological modeling of radiotherapy toxicity, iterative reconstruction algorithms for optimizing intensity modulated radiation therapy treatment (IMRT), using functional imaging (PET or SPECT) data in radiotherapy planning, incorporating biologically based objectives in IMRT optimization and exploring methods to monitor and control patient motion during radiotherapy delivery.
- Armbruster, B., Hamilton, R.J., Kuehl, A.K. Spectrum reconstruction from dose measurements as a linear inverse problem, Phys. Med. Biol., 49, 5087-99, 2004.
- Xu, Q., Hamilton, R.J. A novel respiratory detection method based on automated analysis of ultrasound diaphragm video, Med. Phys. 33, 916-21, 2006.
- Su, A, Blend, MJ, Spelbring, D, Hamilton, RJ, Jani, AB, Postprostatectomy target-normal structure overlap volume differences using computed tomography and radioimmunoscintigraphy images for radiotherapy treatment planning, Clin Nucl Med, 31(3):139-44, 2006.
- Xu, Q., Hamilton, R., Schowengerdt, R., Jiang, S., A deformable lung tumor tracking method in fluroscopic video using active shape models: a feasibility study, Phys. Med. Biol. 52, 5277-93, 2007.
- Watchman, CJ, Hamilton, RJ, Stea, B, Mignault, AJ, Patient positioning using implanted gold markers with the novalis body system in the thoracic spine, Neurosurgery, 62(5 Suppl):A62-8, 2008.
- Nguyen NP, Garland L, Welsh J, Hamilton R, Cohen D, Vincent VH, Can stereotactic fractionated radiation therapy become the standard of care for early stage non-small cell lung carcinoma? Cancer Treat Rev. 2008 July 25 (in advance of publication).
- Nguyen NP, Vos P, Lee H, Borok TL, Karlsson U, Martinez T, Welsh J, Cohen D, Hamilton R, Nguyen N, Nguyen LM, Vinh-Hung V. Impact of tumor board recommendations on treatment outcome for locally advanced head and neck cancer. Oncology. Oct 8;75(3-4):186-191, 2008 (in advance of publication).
- Xu Q, Hamilton R, Schowengerdt R, Alexander B, Jiang S, Lung tumor tracking in fluroscopic video based on optical flow, Med Phys (in press).
- Gulf Oil Honors Scholarship (1982-84)
- University of Illinois Bronze Tablet: graduated summa cum laude
- Ernest M. Lyman Award: Outstanding Undergraduate in Physics
- Solar Physics Division Studentship Award
- National Institutes of Health National Research Service Award
- Kurt Rossman Award for Excellence in Teaching, University of Chicago
- American Board of Medical Physics Certification
- American Board of Radiology Equivalence