Callaghan Innovation Research Papers

Back to Research Papers

TitleFiber-optic-coupled RbMgF3:Eu2+ for remote radiation dosimetry
Publication TypeJournal Article
Year of Publication2011
AuthorsWilliams, G.V.M., and Raymond S.G.
JournalRadiation Measurements
Pagination1099 - 1102
Date Published2011
ISSN13504487 (ISSN)
KeywordsDose rate, Dose response, Dosimeters, Dosimetry, Europium, Europium compounds, Fluoroperovskite, Gamma rays, Gamma-ray irradiation, Irradiation, Low dose, luminescence, Multimode polymers, Optically stimulated luminescence, OSL, Radio-luminescence, RbMgF, Real time, Remote radiation dosimetry
AbstractA portable fiber optic dosimeter has been developed that incorporates RbMgF3:Eu2+ at the end of a multimode polymer fiber. It uses two stimulation sources and takes advantage of the range of stimulable traps in this compound. We observe radioluminescence (RL) during gamma ray irradiation and show that the low-dose RL increases linearly with increasing dose rate where the minimum detectible dose rate is ∼0.015 μSv/s. We show that pulsed infrared-stimulated (940 nm) optically stimulated luminescence (OSL) can be used for real time dose monitoring. The cumulative dose can be readout after irradiation where a linear OSL dose response was observed when stimulating at 505 nm and the minimum detectable dose is ∼50 μSv. © 2011 Elsevier Ltd. All rights reserved.

Back to top