Application of the optically stimulated luminescence (OSL) technique in space dosimetry

摘要

This paper reviews the state of the optically stimulated luminescence (OSL) technique for space dosimetry applications, focusing on the properties of carbon-doped aluminum oxide (Al2O3:C). New data presented include the most complete and recent values for the relative efficiency eta(HCP.gamma) for heavy charged particles as a function of the incident radiation's linear energy transfer (LET), obtained through ground-based experiments at heavy ion accelerators. We also discuss the factors influencing the OSL efficiencies, the LET-dependent properties of Al(2)O3:C, and the experience gained from past space experiments using Al2O3:C. The characterization of the OSL efficiency values as a function of LET allows the use of the OSL of Al2O3:C in combination with plastic nuclear track detectors for personal dosimetry of astronauts, as proposed by the NCRP Report 142. (c) 2006 Elsevier Ltd. All rights reserved.