A simplified SAR protocol for TT-OSL

作者：Porat N^*; Duller G A T; Roberts H M; Wintle A G

来源：Radiation Measurements, 2009, 44(5-6): 538-542.

DOI：10.1016/j.radmeas.2008.12.004

• Quartz
• Thermally-transferred OSL
• SAR
• Dating

A new single-aliquot regenerative-dose (SAR) protocol for measuring the equivalent dose using the thermally-transferred OSL (TT-OSL) signal is proposed. Characterisation of the Basic Transferred OSL (BT-OSL) signal measured using a previous protocol showed that it was unnecessary to measure the BT-OSL thus allowing simplification of the SAR protocol for TT-OSL. To remove the BT-OSL, holding the aliquot for 100 s at 300 degrees C without optical stimulation at the end of each SAR cycle gave the most reproducible results. A simplified protocol incorporating this heat treatment was tested by recovering doses up to 700 Gy which had been given to a modern sand sample with an equivalent dose of less than 5 Gy.

• 出版日期2009-7