Xiandong Zhao

Dr. Xiandong Zhao serves as Assistant Professor of Radiation Oncology at Washington University School of Medicine, joining their physics team in 2023. He holds a BS in Physics (2011) from University of Science and Technology of China and a PhD in Particle Physics (2017) from Southern Methodist University, followed by a Residency in Medical Physics (2023) at Washington University.

His research bridges Proton Therapy, FLASH Radiotherapy, and Nanoparticle-Aided Radiation Therapy through advanced Geant4 Monte Carlo Modeling and Dosimetric Verification of clinical equipment. Recent work includes developing GRID Collimators for compact proton machines and characterizing Radiochromic Films across radiation modalities.

Publications demonstrate expertise in

• DNA Double-Strand Break Quantification
• Proton Physics Model Validation
• Synchrocyclotron FLASH Implementation
• Nanoparticle Radiosensitization Mechanisms

with technical contributions to medical accelerator dosimetry systems.