Enhanced radiation dosimetry of fluoride phosphate glass optical fibres by terbium (III) doping

Abstract

Creative Commons LicensingOSA is aware that some authors, as a condition of their funding, must publish their work under a Creative Commons license. We therefore offer a CC BY license for authors who indicate that their work is funded by agencies that we have confirmed have this requirement. Authors must enter their funder(s) during the manuscript submission process. At that point, if appropriate, the CC BY license option will be available to select for an additional fee.Any subsequent reuse or distribution of content licensed under CC BY must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Abstract: Fluoride phosphate (FP) glass fibres have been developed for radiation dosimetry based on the mechanism of optically stimulated luminescence (OSL). Doping with Tb 3+ ions improved the materials sensitivity; for samples melted in oxidising conditions, OSL intensity was increased from 8.8 × 10 5 cnts/g/Gy for undoped glass to 812.3 × 10 5 cnts/g/Gy for Tb 3+ -doped glass. The radiation sensor performance of Tb 3+ -doped glass fibres under both beta and X-ray irradiation demonstrated the capability of the fibres for radiation dosimetry applications. Compd. 509, 1906Compd. 509, -1909Compd. 509, (2011

Luminescence effects in reactive powder sintered silica glasses for radiation sensing

“…Phosphorescence is negligible, with phosphorescence typically less than 1% of the total counts, with no samples showing clear evidence of anomalous fading. The Ce OSL counts are three orders of magnitude higher than those seen from fluoride phosphate and two orders of magnitude higher than the terbium‐doped fluoride phosphate glasses previously measured. The OSL dose‐response at varying beta irradiations shows that the Ce sample has high dose sensitivity, and demonstrates strong potential for use of this material as a dosimeter.…”

“…The literature shows that most optical fiber dosimetry is done using scintillation, while reports of using optically stimulated luminescence (OSL) within an intrinsic optical fiber are limited . Previously, radiation detection using the OSL response from a fiber has been studied in fluoride phosphate glasses . Silica offers a more physically robust and optically efficient alternative because silica has high mechanical strength, thermal resistance and low optical loss making silica very well suited for use as portal sensors requiring prompt sensing.…”

“…Single material large core unstructured fibers have the advantages of increased surface area and cross section which leads to a larger detection volume. They have also been shown to have improved OSL response . Photoluminescence transitions from rare earths can also enhance sensitivity in luminescence based detection techniques such as thermoluminescence, radioluminescence and OSL .…”

Use of Terbium Doped Phosphate Glasses for High Dose Radiation Dosimetry—Thermoluminescence Characteristics, Dose Response and Optimization of Readout Method

“…It is obvious that increasing the Tb 3+ ions concentration has the most pronounced influence on the lightemission efficiency, what is also confirmed by the data provided in the further parts of this work. The sensitizing effect of rare earth elements was already discussed in previous papers, where other glass samples containing such types of dopants were investigated [27,[45][46][47]. It seems that terbium is one of the most efficient sensitizing agent among rare earth metals.…”

A significant role of MoO3 on the optical, thermal, and radiation shielding characteristics of B2O3–P2O5–Li2O glasses

“…The existence of PO4 & BO4 structural units, this consequence approaches from the structural issues connected with covalent links. In several fields, B2O3-P2O5 -Li2O -MoO3 glasses possess high applications because of their radiation shielding and good FT-IR transmission [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33]. The object of this study is to assist you in the preparation of B2O3-P2O5 -Li2O -MoO3 glasses and investigating their optical and neutron shielding using Phy-X/PSD [34] properties.…”