Development of 3D gamma imaging system or in-vivo range beam verification in proton radiotherapy

Jerimy C. Polf (University of Maryland School of Medicine)

Proton beams exhibit a sharp increase in the rate of dose deposition toward the end of their range, known as the Bragg peak. The sharp fall-off of delivered dose both laterally and beyond the Bragg peak leads to the ability to deliver highly localized doses to a tumor while sparing surrounding healthy tissue in the patient. This has led to the development of proton beam radiotherapy, since it was first suggested in 1942, into a viable radiotherapy treatment option whose use today is rapidly growing worldwide. This seminar will provide an overview of current research into the development of a 3-dimensional gamma imaging system. The application of this imaging technique for in-vivo imaging of proton beam radiotherapy beams and its potential use for tissue/material spectroscopy, and nuclear imaging will be discussed.

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