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Mark Oldham

Professor of Radiation Oncology
Radiation Oncology
Box 3295 Med Ctr, Durham, NC
04214 Duke South Clinics, Duke South Clinics, Durham, NC 27710

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.

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 · March 1, 2026 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 Cite

Investigating Rat-Brain Normal Tissue and Tumor FLASH Effects with a Novel Very High Energy Electron Beam.

Journal Article bioRxiv · September 10, 2025 PURPOSE: Ultra-high dose rate (FLASH) irradiation 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 featu ... Full text Link to item Cite
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Recent Grants


Radioprotective effect of p53 against oral mucositis

ResearchCo Investigator · Awarded by National Institute of Dental and Craniofacial Research · 2023 - 2028

Super-FLASH radiation therapy for pediatric brain tumors

ResearchCo Investigator · Awarded by Ian's Friends Foundation · 2024 - 2026

Exploring synthetic lethality with a novel very high energy electron FLASH radiation beam

ResearchCo-Principal Investigator · Awarded by National Institutes of Health · 2024 - 2026

View All Grants

Education


Newcastle University (United Kingdom) · 1991 Ph.D.