The sunlight OSL response of a commercially available alpha-Al2O3:C personnel dosimetry material

Radiation Protection Dosimetry
W G WestS M Bernal

Abstract

Carbon-doped, anion-defective aluminium oxide has become a widely used and effective medium for personnel dosimetry applications using optically stimulated luminescence (OSL) techniques. Though the commercial products currently using this material employ light-tight packaging to prevent light-induced effects on the OSL signal, the material could be employed in environments where package integrity cannot be assured. This paper reports on the results of an experiment performed to quantify the effects of sunlight exposure on alpha-Al2O3:C. Samples of commercially available Luxel material were exposed to carefully recorded levels of sunlight both before and after irradiations to determine the nature and magnitude of both activation and fading phenomena in this material. The results confirm that both fading and activation processes are seen in this material and indicate that the material reaches an equilibrium dose level in response to prolonged sunlight exposure equivalent to a dose of approximately 15 mGy under the experimental test conditions.

Citations

Jun 11, 2010·Radiation Protection Dosimetry·D RichterA C Zink
Aug 14, 2012·Radiation Protection Dosimetry·Claudia C Gronchi, Linda V E Caldas
May 26, 2017·Health Physics·Sara A AbrahamKimberlee J Kearfott
Mar 19, 2015·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·Kimberlee J KearfottMuhammad Rafique
Mar 15, 2015·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Kimberlee J KearfottMuhammad Rafique

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