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Embedded structure fiber-optic radiation dosimeter for radiotherapy applications

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Show simple item record Qin, Zhuang Hu, Yaosheng Ma, Yu Zhao, Wenhui Sun, Weimin Zhang, Daxin Chen, Ziyin Lewis, Elfed 2017-11-21T19:58:33Z 2017-11-21T19:58:33Z 2016
dc.description peer-reviewed en_US
dc.description.abstract An investigation into a novel in-vivo PMMA (polymethyl methacrylate) plastic fiber-optic dosimeter for monitoring low doses of ionizing radiotherapy radiation in real time and for integrating measurements is presented. The fabricated optical fiber tip possessed an embedded structure. A scintillation material, terbium-doped gadolinium oxysulfide (Gd2O2S:Tb), capable of emitting visible light at around 545 nm which is ideal for transmission through the PMMA when exposed to ionizing radiation was embedded in the PMMA plastic fiber. The dose rate of incident ionizing radiation is measured by analyzing the signal intensity emitted from the scintillation material which propagates through the fiber to a distal MPPC (multi-pixel photon counter). The dosimeter exhibits good repeatability with an excellent linear relationship between the fiber-optic dosimeter output and the absorbed radiation dose with an outstanding isotropic response in its radial angular dependence. en_US
dc.language.iso eng en_US
dc.publisher Optical Society of America en_US
dc.relation.ispartofseries Optics Express;24 (5)
dc.subject fiber optics sensors en_US
dc.subject radiation en_US
dc.subject optical sensing and sensors en_US
dc.title Embedded structure fiber-optic radiation dosimeter for radiotherapy applications en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US 2017-11-21T19:06:24Z
dc.description.version PUBLISHED
dc.identifier.doi 10.1364/OE.24.005172
dc.contributor.sponsor International Science & Technology Cooperation Program of China en_US
dc.contributor.sponsor National Natural Science Foundation of China en_US
dc.relation.projectid 2014DFE10030 en_US
dc.relation.projectid U13311 en_US
dc.relation.projectid B13015 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1642526
dc.internal.copyrightchecked Yes
dc.identifier.journaltitle Optics Express
dc.description.status peer-reviewed

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