Overview
Dr Oldham is the Director of the Duke Medical Physics MS/PhD Graduate Program, and Professor in the Department of Radiation Oncology, with a secondary appointment in the Physics Department at Duke.
Main current research interests include: FLASH radiation therapy, exploring FLASH mechanisms utilizing the Duke High Intensity Gamma Source (HIGS), a nuclear research accelerator on the Duke campus. Recent work selected for best in Physics at the annual AAPM meeting. Radiation and Immunotherapy utilizing mini-grids. Radiation Therapy Enhanced by Cherenkov photo-Activation (RECA) and Comprehensive 3D dosimetry.
Dr Oldham has patented and published on several novel radiation treatment techniques (including XPACT and RECA - Radiotherapy Enhanced by Cherenkov photo-Activation) with exiting potential to invoke systemic anti-cancer immunogenic response. A phase I clinical trial of XPACT is underway. The lab has pioneered novel pre-clinical treatment capabilities including mini-beam grids, and ultra-high-resolution IMRT. The lab has also developed novel optical imaging techniques for high-resolution 3D imaging of vascular networks and fluorescent gene expression in un-sectioned tissue samples.
Main current research interests include: FLASH radiation therapy, exploring FLASH mechanisms utilizing the Duke High Intensity Gamma Source (HIGS), a nuclear research accelerator on the Duke campus. Recent work selected for best in Physics at the annual AAPM meeting. Radiation and Immunotherapy utilizing mini-grids. Radiation Therapy Enhanced by Cherenkov photo-Activation (RECA) and Comprehensive 3D dosimetry.
Dr Oldham has patented and published on several novel radiation treatment techniques (including XPACT and RECA - Radiotherapy Enhanced by Cherenkov photo-Activation) with exiting potential to invoke systemic anti-cancer immunogenic response. A phase I clinical trial of XPACT is underway. The lab has pioneered novel pre-clinical treatment capabilities including mini-beam grids, and ultra-high-resolution IMRT. The lab has also developed novel optical imaging techniques for high-resolution 3D imaging of vascular networks and fluorescent gene expression in un-sectioned tissue samples.
Current Appointments & Affiliations
Professor of Radiation Oncology
·
2021 - Present
Radiation Oncology,
Clinical Science Departments
Professor of Physics
·
2024 - Present
Physics,
Trinity College of Arts & Sciences
Member of the Duke Cancer Institute
·
2016 - Present
Duke Cancer Institute,
Institutes and Centers
Recent Publications
Investigating the FLASH Effect in a Rat Brain Organotypic Model With a Novel High-Energy Electron Beam.
Journal Article Int J Radiat Oncol Biol Phys · October 10, 2025 PURPOSE: Ultrahigh dose rate (FLASH) radiation therapy is reported to reduce normal tissue toxicity while maintaining tumor control; however, mechanism(s) remain obscure. To study FLASH mechanisms in brain tissue, we developed a novel experimental platform ... Full text Link to item CiteBenchmarking of a new integrated 3D dosimetry system against Monte Carlo calculations and an established optical CT scanner.
Journal Article Med Phys · May 2025 BACKGROUND: Advanced radiation therapy techniques, including intensity-modulated radiation therapy (IMRT), stereotactic radiosurgery (SRS), adaptive therapy, and proton therapy, offer high precision in delivering radiation doses to tumors while minimizing ... Full text Link to item CiteClinical applicability of Linac-integrated CBCT based NIPAM 3D dosimetry: a dual-institutional investigation.
Journal Article Phys Med Biol · July 16, 2024 Objective.To develop and benchmark a novel 3D dose verification technique consisting of polymer gel dosimetry (PGD) with cone-beam-CT (CBCT) readout through a two-institution study. The technique has potential for wide and robust applicability through reli ... Full text Link to item CiteRecent Grants
Radioprotective effect of p53 against oral mucositis
ResearchCo Investigator · Awarded by National Institute of Dental and Craniofacial Research · 2023 - 2028Exploring synthetic lethality with a novel very high energy electron FLASH radiation beam
ResearchCo-Principal Investigator · Awarded by National Institutes of Health · 2024 - 2026Super-FLASH radiation therapy for pediatric brain tumors
ResearchCo Investigator · Awarded by Ian's Friends Foundation · 2024 - 2025View All Grants
Education, Training & Certifications
Newcastle University (United Kingdom) ·
1991
Ph.D.