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Chang, Chang, Ph.D., D.A.B.R.

Director of Physics

Board Certification:
  • Therapeutic Medical Physics

Certifications

Background / Education

  • Fellowship in Medical Physics
    University of Pennsylvania, Philadelphia, Pa.
  • Residency in Medical Physics
    University of Pennsylvania, Philadelphia, Pa.
  • Philosophy Doctorate in Electrical Engineering and Computer Sciences
    University of California, Berkeley, Calif.

Memberships / Honors / Awards

  • American Association of Physicists in Medicine
  • American Society for Therapeutic Radiology and Oncology

Summary

Prior to joining Texas Center for Proton Therapy, Dr. Chang was a senior medical physicist at ProCure Proton Therapy Center in Somerset, N.J. He was involved in the commissioning of second-generation proton therapy technology, i.e. pencil-beam scanning (PBS) treatment mode. He was also instrumental in commissioning the new RayStation treatment planning system for both passive and PBS proton treatments. Following the successful commissioning and clinical implementation of PBS, Dr. Chang supervised the operation of patient-specific quality assurance in ProCure’s high-volume New Jersey clinic.

In addition to these clinical accomplishments, Dr. Chang has also written numerous software programs to facilitate the clinical workflow of a proton center, including automated beam parameter extraction for PBS commissioning, analytic MU calculation for passive scattering beams, automatic collision detection, and 3D gamma criterion for pencil-beam scanning proton therapy. These technical achievements have been proven to improve safety and increase the effectiveness of high volume proton clinics.

Dr. Chang has co-authored more than 50 peer-reviewed articles, abstracts, and book chapters. He has also received numerous state and private grants funding his research.

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