Influence of dose history on thermoluminescence response of Ge-doped silica optical fibre dosimeters

Moradi, F.; Mahdiraji, Ghafour Amouzad; Dermosesian, E.; Khandaker, Mayeen Uddin; Ung, Ngie Min; Adikan, Faisal Rafiq Mahamd; Amin, Yusoff Mohd

doi:10.1016/j.radphyschem.2017.01.029

Cited by 13 publications

(7 citation statements)

References 23 publications

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“…Several materials such as germanium [10], [53]- [57], boron [52], [58], aluminum [54], [59], [60], phosphorus [61], and thulium [60], [62] have been proposed for radiation dosimetry for different applications. Modified chemical vapor deposition (MCVD) is one of the common methods for doping such materials in silica fibers.…”

Section: Methodsmentioning

confidence: 99%

“…Reproducibility of Ge-doped fibers to a dose of 2Gy is represented in Fig. 10 which can be even more greatly improved using an appropriate pre-dose and heating treatment [10].…”

Section: External Beam Radiotherapymentioning

confidence: 99%

“…Besides the general characteristics of optical fiber radiation dosimeters such as cost effectiveness, sufficient sensitivity [8], acceptable fading [9], response linearity and reproducibility [10] and dose rate independence [11], they have some unique properties providing for the possibility of precision measurement of dose in tissues. These include water-resistance and spatial resolution of down to 100 μm.…”

Section: Introductionmentioning

confidence: 99%

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Recent Advances in Silica Glass Optical Fiber for Dosimetry Applications

et al. 2020

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In this paper, we review the highly promising silica glass, fabricated as doped and undoped optical fiber for intended use in radiation dosimetry. The dosimetry techniques reviewed here, underpinned by intrinsic and extrinsic defects in silica glass, focus on Thermoluminescence (TL), Optically Stimulated Luminescence (OSL) and Radioluminescence (RL), with occasional references to the much more established Radiation Induced Attenuation (RIA). The other focus in this review is on the various materials that have been reported earlier as dopants and modifiers used in silica glass optical fiber radiation dosimeters. This article also elaborates on recently reported optical fiber structures, namely, cylindrical fibers, photonic crystal fibers and flat fibers, as well as dimensions and shapes used for optimization of dosimeter performance. The various types of optical fiber radiation dosimeters are subsequently reviewed for various applications ranging from medical dosimetry such as in external beam radiotherapy, brachytherapy and diagnostic imaging, as well as in industrial processing and space dosimetry covering a dynamic dose range from μGy to kGy. Investigated dosimetric characteristics include reproducibility, fading, dose response, reciprocity between luminescence yield to dose-rate and energy dependence. The review is completed by a brief discussion on limitations and future developments in optical fiber radiation dosimetry.

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Section: Methodsmentioning

confidence: 99%

“…Reproducibility of Ge-doped fibers to a dose of 2Gy is represented in Fig. 10 which can be even more greatly improved using an appropriate pre-dose and heating treatment [10].…”

Section: External Beam Radiotherapymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Recent Advances in Silica Glass Optical Fiber for Dosimetry Applications

et al. 2020

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“…Palmer et al (2013) reported the use of GDSFs for high dose-rate (HDR) brachytherapy dosimetry in comparison with two other dosimeters, EBT3 films and PRESAGE polymers, pointing to a problematic noise to response ratio and a consistent over-response at low doses. It was believed that part of the problem was due to the lack of a suitable stabilization process for the GDSF, the dosimetric characteristics of these fibres potentially being significantly improved upon by a proper annealing regime and pre-dose treatment, as suggested in our previous work (Moradi et al 2017b).…”

Section: Introductionmentioning

confidence: 93%

Evaluation of Ge-doped silica fibre TLDs forin vivodosimetry during intraoperative radiotherapy

et al. 2019

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Ge-doped silica fibre (GDSF) thermoluminescence dosimeters (TLD) are non-hygroscopic spatially high-resolution radiation sensors with demonstrated potential for radiotherapy dosimetry applications. The INTRABEAM® system with spherical applicators, one of a number of recent electronic brachytherapy sources designed for intraoperative radiotherapy (IORT), presents a representative challenging dosimetry situation, with a low keV photon beam and a desired rapid dose-rate fall-off close-up to the applicator surface. In this study, using the INTRABEAM® system, investigations were made into the potential application of GDSF TLDs for in vivo IORT dosimetry. The GDSFs were calibrated over the respective dose- and depth-range 1 to 20 Gy and 3 to 45 mm from the x-ray probe. The effect of different sizes of spherical applicator on TL response of the fibres was also investigated. The results show the GDSF TLDs to be applicable for IORT dose assessment, with the important incorporated correction for beam quality effects using different spherical applicator sizes. The total uncertainty in use of this type of GDSF for dosimetry has been found to range between 9.5% to 12.4%. Subsequent in vivo measurement of skin dose for three breast patients undergoing IORT were performed, the measured doses being below the tolerance level for acute radiation toxicity.

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“…To improve the radiation-capturing capability, detection length/accuracy, and robustness of devices, all-fiber RIL radiation fiber sensors were developed as intrinsic sensing (Figure 4d). Based on the development of the fiber thermal drawing process and material engineering, scintillating materials, such as rare earth element doped silica, Ce doped YAlO3, Ce doped Lu1.8Y2SiO3, etc., are inserted into the fiber cladding tube and drawn into scintillating fibers directly (Table 1) [62][63][64][65][66][67][68][69][70][71][72]. For the intrinsic RIL fiber sensor, the fiber not only transmits the generated photons, but also serves as the light emitting element that directly reacts with radiations.…”

Section: Typical Fiber Radiation Dosimeter Based On Rilmentioning

confidence: 99%

Recent Advances in Optical Fiber Enabled Radiation Sensors

Zhang

Xiang

Wang

et al. 2022

Sensors

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Optical fibers are being widely utilized as radiation sensors and dosimeters. Benefiting from the rapidly growing optical fiber manufacturing and material engineering, advanced optical fibers have evolved significantly by using functional structures and materials, promoting their detection accuracy and usage scenarios as radiation sensors. This paper summarizes the current development of optical fiber-based radiation sensors. The sensing principles of both extrinsic and intrinsic optical fiber radiation sensors, including radiation-induced attenuation (RIA), radiation-induced luminescence (RIL), and fiber grating wavelength shifting (RI-GWS), were analyzed. The relevant advanced fiber materials and structures, including silica glass, doped silica glasses, polymers, fluorescent and scintillator materials, were also categorized and summarized based on their characteristics. The fabrication methods of intrinsic all-fiber radiation sensors were introduced, as well. Moreover, the applicable scenarios from medical dosimetry to industrial environmental monitoring were discussed. In the end, both challenges and perspectives of fiber-based radiation sensors and fiber-shaped radiation dosimeters were presented.

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Influence of dose history on thermoluminescence response of Ge-doped silica optical fibre dosimeters

Cited by 13 publications

References 23 publications

Recent Advances in Silica Glass Optical Fiber for Dosimetry Applications

Recent Advances in Silica Glass Optical Fiber for Dosimetry Applications

Evaluation of Ge-doped silica fibre TLDs forin vivodosimetry during intraoperative radiotherapy

Recent Advances in Optical Fiber Enabled Radiation Sensors

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