Radiation Physics Department


Geoffrey Ibbott, Ph.D.
Professor and Chair,
Radiation Physics

The Department of Radiation Physics (1) provides research-driven, safe, accurate and high quality patient care in collaboration with radiation oncologist, (2) conducts research and technology development to advance the state of the art and (3) provides education on the scientific (physics) and technical aspects of radiation oncology. The Department of Radiation Physics has approximately 200 employees (in 2009). These include approximately 50 Ph.D. faculty members and 15 M.S. professional staff members. Both faculty and professional staff members provide clinical service, whereas many faculty members devote substantial effort to research activities. Members of the Department are located at the main center at 1515 Holcombe Boulevard, Mays Clinic, Proton Therapy Center, at various satellites in metropolitan Houston area and elsewhere and in the Department's Outreach section at an offsite location. 

The Department has the following functions.

Clinical Practice

  • Provide quality assurance of imaging and treatment delivery equipment and of systems and processes to ensure optimal, accurate and safe delivery of treatments
  • Provide clinical services in support of imaging and planning, delivery and patient-specific quality assurance of radiation treatments
  • Provide similar support for satellite facilities
  • Provide patient specific consultations as requested by the oncologists


  • Evaluate the potential of current practices and devices through pre-clinical treatment planning and imaging studies
  • Collaborate with radiation oncologists in the conduct of MD Anderson and national cooperative group trials
  • Advance the state of the art at MD Anderson and elsewhere through research, development and translation of research into clinical practice


  • Teach and mentor students of the Graduate School of Biomedical Sciences (Medical Physics Program)
  • Teach students in therapy and dosimetry undergraduate programs
  • Teach radiation physics to radiation oncology residents and mentor their physics related research
  • Mentor and guide the research of postdoctoral fellows
  • Mentor and guide the clinical training of radiation physics residents


  • Evaluate, specify, install and commission equipment and systems appropriate for clinical practice and research
  • Manage or help manage software and hardware systems for processing images, planning radiation treatments, electronic medical records, radiation oncology PACs and other clinical and research applications