Feasibility of dose assessment in radiological diagnostic equipments using Ce-doped radio-luminescent optical fibers

Caretto, Nicola; Chiodini, N.; Moretti, Federico; Origgi, Daniela; Tosi, G.; Vedda, A.

doi:10.1016/j.nima.2009.10.072

Cited by 15 publications

(8 citation statements)

References 17 publications

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“…In these measured elements, the Ce is unique material of a gamma radiation sensitive with radiative luminescence [10]. In addition, as well as the wavelength of Ce radioluminescence emission spectrum is at about 400 nm [11], that is consistent with the response wavelength of a photomultiplier tube in the gamma test system( mentioned in this paper section 3). Radiation emitting characteristics of rare earth element Ce decided it plays a key role in the scintillation optical fiber.…”

Section: Xrf Measurementssupporting

confidence: 76%

Cerium doped silica scintillating fiber sensor for γ radiation measurement

et al. 2013

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Remote optical fiber sensors for radiation measurement are very useful in high radiation fields. In this paper, we fabricated scintillating optical fiber by using a cerium-doped silica rod. In the drawing process, we obtained different fiber samples by changing the drawing temperature and speed. The drawing temperature is from 1900 to 2200 ℃ and the speed is from 1 to 10 m/min. The experimental results showed that the optical rod physical properties such as viscosity, tension and scintillating efficiency can be controlled by the parameters of temperature and speed. The optical properties and chemical composition of the scintillating optical fiber have been analyzed by Raman spectra and X-ray fluorescence spectrometer (XRF-1800, SHIMADZU). The concentration of the doped cerium is 0.55%. Moreover, a test system is proposed to measure the scintillating performance of the fabricated optical fibers. For the scintillating properties, the effect of fiber length, the number of fiber bundle and the detection angle were analyzed. Experimental results showed that the optimal length of the cerium doped fiber is ~15 cm. The scintillating light intensity increases linearly with the number of the fiber bundle. With two low intensity 60 Co (0.2784 μCi) and 137 Cs (1.0865 μCi) gamma radiation sources, the scintillating light can be detected the gamma sources by using the scintillating fiber sensor which is connected a MMF.

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Section: Xrf Measurementssupporting

confidence: 76%

Cerium doped silica scintillating fiber sensor for γ radiation measurement

et al. 2013

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“…Noted in this study is the monotonic linearity of the accumulated RL response against current-time product as well as X-ray tube peak voltage. Similar observations can be traced back to studies with Ce 3+ doped silica optical fibers in [125]. [126] has demonstrated the usefulness of Ce-doped silica optical fiber in the diagnostic range utilizing RL and OSL methods.…”

Section: Brachytherapysupporting

confidence: 59%

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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“…External Beam Radiotherapy X-ray, Gamma-ray, Proton beams [127][128][129][130][131][132][133] Brachytherapy X-ray, Gamma-ray, Beta radiation [134][135][136][137][138] Diagnostic Radiology X-ray, Gamma-ray [139][140][141][142]…”

Section: Medical Radiation Dosimetrymentioning

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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Feasibility of dose assessment in radiological diagnostic equipments using Ce-doped radio-luminescent optical fibers

Cited by 15 publications

References 17 publications

Cerium doped silica scintillating fiber sensor for γ radiation measurement

Cerium doped silica scintillating fiber sensor for γ radiation measurement

Recent Advances in Silica Glass Optical Fiber for Dosimetry Applications

Recent Advances in Optical Fiber Enabled Radiation Sensors

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