Scintillation-based optical fiber dosimeters for high dose rate and low dose rate brachytherapy

J. Van Erps; Agnieszka Gierej; Tigran Baghdasaryan; Michael Martyn; Peter Woulfe; Owen Mc Laughlin; Kevin Prise; Geraldine Workman; Sinead O'Keeffe; Kurt Rochlitz; Sergey Verlinski; Agnese Giaz; Romualdo Santoro; Massimo Caccia; Francis Berghmans

doi:10.1117/12.3017990

20 June 2024 Scintillation-based optical fiber dosimeters for high dose rate and low dose rate brachytherapy

J. Van Erps, Agnieszka Gierej, Tigran Baghdasaryan, Michael Martyn, Peter Woulfe, Owen Mc Laughlin, Kevin Prise, Geraldine Workman, Sinead O'Keeffe, Kurt Rochlitz, Sergey Verlinski, Agnese Giaz, Romualdo Santoro, Massimo Caccia, Francis Berghmans

Author Affiliations +

Proceedings Volume 12999, Optical Sensing and Detection VIII; 129990C (2024) https://doi.org/10.1117/12.3017990
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

Scintillation-based fiber dosimeters are a powerful tool for minimally invasive localized real-time monitoring of the dose rate during Low Dose Rate (LDR) and High Dose Rate (HDR) brachytherapy (BT). This paper shows the design, fabrication and characterization of such dosimeters, consisting of scintillating sensor tips attached to polymer optical fiber (POF). The scintillating sensor tips consist of inorganic scintillators, dispersed in a polymer host. We present the design, fabrication and characterization of those sensor tips. The manufacturing is done by means of a custom compression and transfer moulding process implemented on a commercially available hot embossing machine. We show the manufacturing of 237 sensor tips, which are subsequently attached to the end of the POF using UV-curable adhesive. Finally, we perform dosimetry experiments in water phantoms which show a great potential for in-vivo dosimetry for brachytherapy.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

J. Van Erps, Agnieszka Gierej, Tigran Baghdasaryan, Michael Martyn, Peter Woulfe, Owen Mc Laughlin, Kevin Prise, Geraldine Workman, Sinead O'Keeffe, Kurt Rochlitz, Sergey Verlinski, Agnese Giaz, Romualdo Santoro, Massimo Caccia, and Francis Berghmans "Scintillation-based optical fiber dosimeters for high dose rate and low dose rate brachytherapy", Proc. SPIE 12999, Optical Sensing and Detection VIII, 129990C (20 June 2024); https://doi.org/10.1117/12.3017990

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