Sep 12 – 17, 2021
University of Birmingham
Europe/London timezone

First results of an oncological brachytherary fiber dosimeter

Sep 16, 2021, 10:39 AM
Teaching and Learning Building (University of Birmingham)

Teaching and Learning Building

University of Birmingham

Edgbaston Campus University of Birmingham B15 2TT UK
poster Medical Applications of Position Sensitive Detectors Poster Session 5 (Gas-based Detectors; Medical Applications of Position Sensitive Detectors)


Agnese Giaz (Università degli studi dell'Insubria)


The ORIGIN project aims to deliver photonics-enabled, adaptive, and more effective diagnostics-driven brachytherapy for cancer treatment through advanced real-time radiation dose imaging and radioactive source localization. This goal will be achieved by developing a 16 to 32 optical-fiber-based system where scintillating light is detected by Silicon Photomultiplier. This work reports the results achieved in laboratory and hospital conditions with single-sensor prototypes for low and high dose rate brachytherapy, requiring different specifications. The former requires high sensitivity and low minimum detectable signal, whereas an extended linearity range is crucial for the latter. Laboratory activities were essential to identify the optimal silicon photomultiplier. Preliminary tests, performed at the hospital premises for both treatments, assessed the viability of the proposed solution. The first results were also relevant to identify the ASIC-based readout system that will allow the project to reach the final goal of engineering a multi-fiber real-time dosimetry imager.

Nationality Italian
Institute Università degli studi dell'Insubria
Your name Agnese Giaz

Primary authors

Agnese Giaz (Università degli studi dell'Insubria) Massimo Caccia (Universita & INFN, Milano-Bicocca (IT)) Michael Martyn (Dept. of Radiotherapy Physics, Galway Clinic, Galway, Ireland.) Romualdo Santoro (Insubria University and INFN - MI) Samuela Lomazzi (University of Insubria) Simona Cometti (Univerisità dell’Insubria, DISAT, Como, Italy.) Sinead O’Keeffe (Optical Fibre Sensors Research Centre, University of Limerick, Ireland) Wern Kam (Optical Fibre Sensors Research Centre, University of Limerick, Ireland)

Presentation materials