Development of a Hydrated Electron Dosimeter for FLASH and Conventional Radiotherapy Applications

The aim of radiation therapy is to give a high radiation dose to the tumour while minimising the dose to healthy tissues. Radiation therapy has seen significant progress and innovations in recent years. Implementation of these newly developed treatment techniques in the clinic require high accuracy in dose delivery due to the relationships between absorbed dose, local tumor control and particularly normal tissue damage. Measurements of radiation dose is important to ensure accurate dose delivery to the patients. Several techniques are available to measure the radiation dose, in vivo or in vitro but they have limitations. In particular, the non-tissue equivalence of the detector housing/material and the sensitive volume leads to perturbations of the radiation fluence and necessitates correction factors. Another constraint placed on conventional dosimetric techniques is the limited resolution. In radiotherapy, in vivo dosimetry means measurement of the radiation dose received by the patient during treatment, as opposed to ex vivo or in vitro dose measurements made either before or after the treatment using a phantom to represent the patient. The aim of this project is to develop a novel, compact, sensitive, and fast detector based on radiolysis of water, which is decomposition of water molecules by TOBECONT’.

Faculty Supervisor:

Shirin Abbasinejad Enger

Student:

Partner:

Varian Medical Systems

Discipline:

Life Sciences

Sector:

Health and Related Sciences & Technology; Manufacturing

University:

Research Institute of the McGill University Health Centre

Program: