Radiation Detection and Imaging (RDI) is an Arizona-based medical technology company developing advanced radiation measurement and imaging systems for cancer care. Founded and led by experimental particle physicist Dr. Evgeny Galyaev, RDI combines detector physics, high-speed electronics, embedded systems, software, and machine learning to address a growing problem: radiation treatments are becoming faster and more complex, while many of the instruments used to verify them cannot capture the full detail of what is delivered.

Our lead platform, ONYX, uses a patented multi-coordinate detector architecture to continuously image an entire radiation field, resolve individual proton beam spots, and measure spatial and temporal beam behavior that conventional quality assurance instruments may average away. Two working prototypes have been tested with Mayo Clinic in Arizona and have demonstrated the core performance of our approach.

RDI holds four U.S. utility patents and has received approximately $1.7 million in non-dilutive funding, supplemented by substantial founder investment. Our initial market is proton therapy quality assurance, with future applications in FLASH, SRS/SBRT, and other precision radiotherapy modalities.

RDI is now moving from technical validation toward commercialization. We are seeking aligned investors and strategic partners to complete productization, place early systems, build recurring analytics and support revenue, and establish RDI as a scalable medical technology company.