Ronald E. Tosh, PhD

To provide AAPM members with a centralized, authoritative, and continuously updated web-based resource for obtaining beam quality conversion factors, kQ, and other data needed to realize absorbed dose measurements using the AAPM TG-51 protocol.

To use ultrasonic methods to measure FLASH-beam dose distributions within irradiated water, thereby to validate ultrasonic phase-shift methods for FLASH dosimetry and, ultimately, to differentiate regions where FLASH thresholds are exceeded.