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Authors: Michael Martyn, Wern Kam, Peter Woulfe, Sinead O’Keeffe

Published in: IEEE Sensors Journal ( Volume: 23, Issue: 2, 15 January 2023)

Abstract
Radiotherapy (RT) is commonly employed for the treatment of cancer, with 50%–60% of patients requiring some form of RT, after their cancer diagnosis. RT can be divided into external beam RT (EBRT), referring to the use of a linear accelerator to deliver radiation from outside the patient’s body, or brachytherapy (BT). T can be divided into external beam RT (EBRT), referring to the use of a linear accelerator to deliver radiation from outside the patient’s body, or brachytherapy (BT), referring to the use of radioactive sources that are implanted within, or in close proximity to, the critical target.

Water phantom experimental setup employed for acquiring measurement data. The 125I seed (within a plastic needle) and the sensor tip (also within a plastic needle) are labeled, as are the 3-D printed components.