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Luminescence effects in reactive powder sintered silica glasses for radiation sensing

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dc.contributor.authorShaw, R.
dc.contributor.authorKalnins, C.
dc.contributor.authorSpooner, N.
dc.contributor.authorWhittaker, C.
dc.contributor.authorGrimm, S.
dc.contributor.authorSchuster, K.
dc.contributor.authorOttaway, D.
dc.contributor.authorMoffatt, J.
dc.contributor.authorTsiminis, G.
dc.contributor.authorEbendorff-Heidepriem, H.
dc.date.issued2019
dc.description.abstractSilica glasses doped with rare‐earth ions are potential materials for optical fiber radiation detection and dosimetry applications. High sensitivity to radiation requires fibers with large cores that can be reliably fabricated using glass made in a novel process from the reactive powder sintering of silica. The luminescence and dosimetric properties of a range of rare earth‐doped silica materials produced using this novel technique are reported here. Radioluminescence and optically stimulated luminescence (OSL) are the fundamental mechanisms enabling radiation detection in optical fibers. It was found that thermoluminescence, radioluminescence, and OSL are observed if the glass contains luminescent transitions in the detection wavelength range. Cerium‐ and thulium‐doped silica glasses were found to be promising candidates for optical fiber dosimetry. Samples showed intense luminescence signals in response to both photo‐stimulation and irradiation from alpha and beta sources. OSL results for cerium are three times larger than results for irradiated fluoride phosphate glasses previously tested for dosimetry use. Spectroscopic measurements indicate emission in the 300‐500 nm region, suitable for detection with photomultiplier tubes.
dc.description.statementofresponsibilityRuth E. Shaw, Christopher A. G. Kalnins, Nigel Antony Spooner, Carly Whittaker, Stephan Grimm, Kay Schuster, David Ottaway, Jillian Elizabeth Moffatt, Georgios Tsiminis, Heike Ebendorff‐Heidepriem
dc.identifier.citationJournal of the American Ceramic Society, 2019; 102(1):222-238
dc.identifier.doi10.1111/jace.15918
dc.identifier.issn0002-7820
dc.identifier.issn1551-2916
dc.identifier.orcidShaw, R. [0000-0001-5683-6593]
dc.identifier.orcidKalnins, C. [0000-0002-4106-9704]
dc.identifier.orcidSpooner, N. [0000-0002-8534-3816]
dc.identifier.orcidOttaway, D. [0000-0001-6794-1591]
dc.identifier.orcidMoffatt, J. [0000-0001-7097-0959]
dc.identifier.orcidTsiminis, G. [0000-0002-4321-3837]
dc.identifier.orcidEbendorff-Heidepriem, H. [0000-0002-4877-7770]
dc.identifier.urihttp://hdl.handle.net/2440/117327
dc.language.isoen
dc.publisherAmerican Ceramic Society
dc.rights© 2018 The American Ceramic Society
dc.source.urihttps://doi.org/10.1111/jace.15918
dc.subjectLuminescence; sensors; fibers
dc.titleLuminescence effects in reactive powder sintered silica glasses for radiation sensing
dc.typeJournal article
pubs.publication-statusPublished

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