Photonic crystal fibre as a potential medium for radiotherapy dosimetry

Begum, Mahbuba; Rahman, A.K.M. Mizanur; Abdul-Rashid, H.A.; Yusoff, Z.; Nawi, Siti Nurasiah Mat; Khandaker, Mayeen Uddin; Bradley, D.A.

doi:10.1016/j.apradiso.2021.109771

Cited by 7 publications

(1 citation statement)

References 46 publications

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“…Driving factors for this include the small dimensions of optical fibre sensors, their immunity to electromagnetic interference, and general ease of achieving biocompatibility [ 2 , 3 ]. The aforementioned benefits are of particular advantage in radiotherapy linear accelerators [ 4 , 5 , 6 ], magnetic resonance imaging (MRI) devices [ 7 , 8 , 9 ], and general in vivo applications themselves [ 10 , 11 , 12 ]. In addition to the aforementioned patient-centric applications, high-resolution temperature sensors may also be of benefit in micro-volume calorimetry applications.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Qualitative Analysis of an Optical Fibre EFPI-Based Temperature Sensor

McGuinness

Cloonan

Oubaha

et al. 2021

Sensors

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The following presents a comparison of an extrinsic Fabry–Perot interferometer (EFPI)-based temperature sensor, constructed using a novel diaphragm manufacturing technique, with a reference all-glass EFPI temperature sensor. The novel diaphragm was manufactured using polyvinyl alcohol (PVA). The novel sensor fabrication involved fusing a single-mode fibre (SMF) to a length of fused quartz capillary, which has an inner diameter of 132 μm and a 220 μm outer diameter. The capillary was subsequently polished until the distal face of the capillary extended approximately 60 μm beyond that of the single mode fibre. Upon completion of polishing, the assembly is immersed in a solution of PVA. Controlled extraction resulted in creation of a thin diaphragm while simultaneously applying a protective coating to the fusion point of the SMF and capillary. The EFPI sensor is subsequently sealed in a second fluid-filled capillary, thereby creating a novel temperature sensor structure. Both temperature sensors were placed in a thermogravimetric analyser and heated from an indicated 30 °C to 100 °C to qualitatively compare sensitivities. Initial results indicated that the novel manufacturing technique both expedited production and produces a more sensitive sensor when compared to an all-glass construction.

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Section: Introductionmentioning

confidence: 99%

Fabrication and Qualitative Analysis of an Optical Fibre EFPI-Based Temperature Sensor

McGuinness

Cloonan

Oubaha

et al. 2021

Sensors

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Passive Dosimeters for Radiation Dosimetry: Materials, Mechanisms, and Applications

Yang,

Vrielinck,

Jacobsohn

et al. 2024

Adv Funct Materials

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Passive dosimeters enabling accurate measurement of doses from gamma rays to visible light are necessary to ensure efficient utilization of electromagnetic radiation in numerous fields like medical diagnostics and industrial manufacturing. The specific requirements for dosimeters in terms of dosimetry range, sensitivity, accuracy, and stability for each application have led to the development of various dosimeters based on new materials and new mechanisms. Here, a comprehensive review of different types of dosimeters classified according to the response signal, namely electron paramagnetic resonance, electrical, and optical, is provided. This review starts with a general introduction to dosimetry, a classification of dosimeters, and an elucidation of the necessity of dosimeters in various ranges of the electromagnetic spectrum. This is followed by an overview of the fundamental requirements of dosimeters, an explanation of the general dosimetry procedure, and the dosimetric quantities. Emphasis is given to the working mechanism, the design concept, and applications of each type of dosimeter as well as their respective strengths and drawbacks. Challenges and prospects are presented at the end of the review. This review provides an insightful overview of the material‐mechanism‐characteristics‐application relationship of different types of dosimeters that hopefully can serve as inspiration for the development of new devices.

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Synthesis, characterization and thermoluminescence properties of LiCaPO4 phosphor for ionizing radiation dosimetry

Rahat,

Mimi,

Islam

et al. 2023

Applied Radiation and Isotopes

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Photonic crystal fibre as a potential medium for radiotherapy dosimetry

Cited by 7 publications

References 46 publications

Fabrication and Qualitative Analysis of an Optical Fibre EFPI-Based Temperature Sensor

Fabrication and Qualitative Analysis of an Optical Fibre EFPI-Based Temperature Sensor

Passive Dosimeters for Radiation Dosimetry: Materials, Mechanisms, and Applications

Synthesis, characterization and thermoluminescence properties of LiCaPO4 phosphor for ionizing radiation dosimetry

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