Quartz red TL SAR equivalent dose overestimation for Chinese loess

Zhong Ping Lai, Andrew S. Murray, Richard M. Bailey, Sébastien Huot, Lars Bøtter-Jensen

Research output: Contribution to journalArticlepeer-review

Abstract

For the red TL of quartz extracted from Chinese loess, the single-aliquot regenerative-dose (SAR) procedure overestimates the known laboratory doses in dose recovery test. The overestimation is the result of the first heating during the measurement of natural TL signal causing a sensitivity reduction, which is not corrected for using a SAR protocol. The SARA procedure was used to measure the sensitivity change. Using this as a correction factor is tested by comparison with the quartz optically stimulated luminiscence (OSL) equivalent dose. SARA is also employed to determine the residual level of red TL, which is found to be more than 100 Gy.

Original languageEnglish (US)
Pages (from-to)114-119
Number of pages6
JournalRadiation Measurements
Volume41
Issue number1
DOIs
StatePublished - Jan 2006
Externally publishedYes

Keywords

  • Chinese loess
  • Quartz red TL
  • Residual level
  • SAR D
  • Sensitivity change

ASJC Scopus subject areas

  • Radiation
  • Instrumentation

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