Physics World on Andreozzi at AAPM

Physics World recently published a story about Thayer School of Engineering graduate Jacqueline Andreozzi, PhD, and her presentation at the 2018 AAPM Annual Meeting on the use of Cherenkov imaging for beam measurements in a MR-linear accelerator.

Jacqueline and the Dartmouth research team used a MR-linac to irradiate a water tank and measured Cherenkov emissions with an intensified CMOS sensor.  Using a remote triggering device, they synchronized the acquired images to the radiation pulses from the MR-linac.  Because the CMOS sensor can more easily collect red/near-infrared photons, the Dartmouth team demonstrated through these simulations that the number of detected Cherenkov photons is proportional to radiation dose.

Dr. Andreozzi concluded that Cherenkov imaging is a MR-compatible method for measuring MR-linac doses that is both rapid and repeatable.  Importantly, Cherenkov imaging also has the potential for expansion to small beam dosimetry.

Jacqueline is now a Medical Physics Resident in the Department of Radiation Oncology at the University of Florida.

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