{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:45:18Z","timestamp":1760147118879,"version":"build-2065373602"},"reference-count":30,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2023,1,12]],"date-time":"2023-01-12T00:00:00Z","timestamp":1673481600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery","award":["RGPIN 2019-05038","RGPIN-2016-05877"],"award-info":[{"award-number":["RGPIN 2019-05038","RGPIN-2016-05877"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The interest in fiber Bragg gratings dosimeters for radiotherapy dosimetry lies in their (i) submillimeter size, (ii) multi-points dose measurements, and (iii) customizable spatial resolution. However, since the radiation measurement relies on the thermal expansion of the surrounding polymer coating, such sensors are strongly temperature dependent, which needs to be accounted for; otherwise, the errors on measurements can be higher than the measurements themselves. In this paper, we test and compare four techniques for temperature compensation: two types of dual grating techniques using different coatings, a pre-irradiation and post-irradiation temperature drift technique, which is used for calorimetry, and finally, we developed a real-time interpolated temperature gradient for the multi-points dosimetry technique. We show that, over these four tested techniques, the last one outperforms the others and allows for real-time temperature correction when an array of 13 fiber Bragg gratings spatially extending over the irradiation zone is used. For a 20 Gy irradiation, this technique reduces the measurement errors from 200% to about 10%, making it suitable for a radiotherapy dose range. Temperature correction for medical low-dose range dosimetry is a first in our field and is essential for clinical FBG dosimetry applications.<\/jats:p>","DOI":"10.3390\/s23020886","type":"journal-article","created":{"date-parts":[[2023,1,12]],"date-time":"2023-01-12T04:29:38Z","timestamp":1673497778000},"page":"886","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Real-Time Temperature Correction of Medical Range Fiber Bragg Gratings Dosimeters"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8003-1397","authenticated-orcid":false,"given":"Marie-Anne","family":"Lebel-Cormier","sequence":"first","affiliation":[{"name":"D\u00e9partement de Physique, de G\u00e9nie Physique et d\u2019Optique, Universit\u00e9 Laval, Qu\u00e9bec, QC G1V 0A6, Canada"},{"name":"Centre de Recherche sur le Cancer, Universit\u00e9 Laval, Qu\u00e9bec, QC G1R 3S3, Canada"},{"name":"CHU de Qu\u00e9bec Universit\u00e9\u2014Laval et CRCHU de Qu\u00e9bec, Qu\u00e9bec, QC G1R 2J6, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3072-693X","authenticated-orcid":false,"given":"Tommy","family":"Boilard","sequence":"additional","affiliation":[{"name":"D\u00e9partement de Physique, de G\u00e9nie Physique et d\u2019Optique, Universit\u00e9 Laval, Qu\u00e9bec, QC G1V 0A6, Canada"},{"name":"Centre d\u2019Optique, Photonique et Laser (COPL), Universit\u00e9 Laval, Qu\u00e9bec, QC G1V 0A6, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0429-6366","authenticated-orcid":false,"given":"Luc","family":"Beaulieu","sequence":"additional","affiliation":[{"name":"D\u00e9partement de Physique, de G\u00e9nie Physique et d\u2019Optique, Universit\u00e9 Laval, Qu\u00e9bec, QC G1V 0A6, Canada"},{"name":"Centre de Recherche sur le Cancer, Universit\u00e9 Laval, Qu\u00e9bec, QC G1R 3S3, Canada"},{"name":"CHU de Qu\u00e9bec Universit\u00e9\u2014Laval et CRCHU de Qu\u00e9bec, Qu\u00e9bec, QC G1R 2J6, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Martin","family":"Bernier","sequence":"additional","affiliation":[{"name":"D\u00e9partement de Physique, de G\u00e9nie Physique et d\u2019Optique, Universit\u00e9 Laval, Qu\u00e9bec, QC G1V 0A6, Canada"},{"name":"Centre d\u2019Optique, Photonique et Laser (COPL), Universit\u00e9 Laval, Qu\u00e9bec, QC G1V 0A6, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,1,12]]},"reference":[{"key":"ref_1","first-page":"173","article-title":"A review on optical fiber sensors for environmental monitoring","volume":"5","author":"Joe","year":"2018","journal-title":"Int. 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