{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T00:40:57Z","timestamp":1760143257334,"version":"build-2065373602"},"reference-count":27,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2024,1,30]],"date-time":"2024-01-30T00:00:00Z","timestamp":1706572800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"European Union\u2019s Horizon 2020 Research and Innovation Programme","award":["no. 871324"],"award-info":[{"award-number":["no. 871324"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Source localisation and real-time dose verification are at the forefront of medical research in brachytherapy, an oncological radiotherapy procedure based on radioactive sources implanted in the patient body. The ORIGIN project aims to respond to this medical community\u2019s need by targeting the development of a multi-point dose mapping system based on fibre sensors integrating a small volume of scintillating material into the tip and interfaced with silicon photomultipliers operated in counting mode. In this paper, a novel method for the selection of the optimal silicon photomultipliers to be used is presented, as well as a laboratory characterisation based on dosimetric figures of merit. More specifically, a technique exploiting the optical cross-talk to maintain the detector linearity in high-rate conditions is demonstrated. Lastly, it is shown that the ORIGIN system complies with the TG43-U1 protocol in high and low dose rate pre-clinical trials with actual brachytherapy sources, an essential requirement for assessing the proposed system as a dosimeter and comparing the performance of the system prototype against the ORIGIN project specifications.<\/jats:p>","DOI":"10.3390\/s24030910","type":"journal-article","created":{"date-parts":[[2024,1,30]],"date-time":"2024-01-30T12:06:58Z","timestamp":1706616418000},"page":"910","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Characterisation of a Silicon Photomultiplier Based Oncological Brachytherapy Fibre Dosimeter"],"prefix":"10.3390","volume":"24","author":[{"given":"Massimo","family":"Caccia","sequence":"first","affiliation":[{"name":"Dipartimento di Scienza e Alta Tecnologia, Universit\u00e0 degli Studi dell\u2019Insubria, via Valleggio 11, 22100 Como, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Agnese","family":"Giaz","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienza e Alta Tecnologia, Universit\u00e0 degli Studi dell\u2019Insubria, via Valleggio 11, 22100 Como, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marco","family":"Galoppo","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienza e Alta Tecnologia, Universit\u00e0 degli Studi dell\u2019Insubria, via Valleggio 11, 22100 Como, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4360-4600","authenticated-orcid":false,"given":"Romualdo","family":"Santoro","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienza e Alta Tecnologia, Universit\u00e0 degli Studi dell\u2019Insubria, via Valleggio 11, 22100 Como, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9730-1402","authenticated-orcid":false,"given":"Micheal","family":"Martyn","sequence":"additional","affiliation":[{"name":"Radiotherapy Department, Galway Clinic, Doughiska Road, H91 HHT0 Galway, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carla","family":"Bianchi","sequence":"additional","affiliation":[{"name":"Ospedale di Circolo di Varese, Universit\u00e0 degli Studi dell\u2019Insubria, Viale Borri, 57, 21100 Varese, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Raffaele","family":"Novario","sequence":"additional","affiliation":[{"name":"Ospedale di Circolo di Varese, Universit\u00e0 degli Studi dell\u2019Insubria, Viale Borri, 57, 21100 Varese, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Woulfe","sequence":"additional","affiliation":[{"name":"Ospedale di Circolo di Varese, Universit\u00e0 degli Studi dell\u2019Insubria, Viale Borri, 57, 21100 Varese, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sinead","family":"O\u2019Keeffe","sequence":"additional","affiliation":[{"name":"Optical Fibre Sensors Research Centre, University of Limerick, V94 T9PX Limerick, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,1,30]]},"reference":[{"key":"ref_1","unstructured":"Khan, F., and Gibbons, J. 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