Radiation dosimetry using optically stimulated luminescence in fluoride phosphate optical fibres
2011; Optica Publishing Group; Volume: 2; Issue: 1 Linguagem: Inglês
10.1364/ome.2.000062
ISSN2159-3930
AutoresChristopher A. G. Kalnins, Heike Ebendorff‐Heidepriem, Nigel A. Spooner, Tanya M. Monro,
Tópico(s)Digital Radiography and Breast Imaging
ResumoOptically stimulated luminescence has been demonstrated within a fluoride phosphate glass optical fibre.These fibres have been used as the basis of a novel dosimeter architecture whereby the optical fibre acts as both the sensing and light guiding component.Fibres were fabricated from a commercially acquired glass and irradiated using a 90 Sr/ 90 Y source.Following optical stimulation with a 532 nm laser, optically stimulated luminescence of 483 ± 18 cnts/g/µJ was detected.In addition to OSL, scintillation of 6155 ± 78 cnts/s was also measured.A linear response between 0.16 -2 Gy of irradiation was measured, after which the intensity was observed to plateau.These results indicate the potential suitability of fluoride phosphate optical fibres for radiation sensing applications.
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