Abstract
We give a theoretical overview of non-fading infrared stimulated luminescence (IRSL) signals in feldspars, followed by intercomparison of potential methods on some sediment extracts. We observe that a more stringent thermal wash on its own is not effective in obtaining a more stable signal, suggesting that the higher the stimulation temperature in post IR-IRSL methods, the greater the ability to access distant electron hole pairs. We further find that the delayed off-time signal in time-resolved IRSL has immense potential for sampling non-fading signal and should be explored further; this signal also appears to be well reset in nature and avoids unwanted thermal transfer effects in comparison to the post IR-IRSL signal measured at 290 degrees C. (C) 2014 Elsevier Ltd and INQUA. All rights reserved.
Original language | English |
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Journal | Quaternary International |
Volume | 362 |
Pages (from-to) | 3-7 |
Number of pages | 5 |
ISSN | 1040-6182 |
DOIs | |
Publication status | Published - 2015 |
Event | 9th New World Luminescence Dating Workshop - Utah State University, Logan, United States Duration: 15 Aug 2013 → 18 Aug 2013 |
Workshop
Workshop | 9th New World Luminescence Dating Workshop |
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Location | Utah State University |
Country/Territory | United States |
City | Logan |
Period | 15/08/2013 → 18/08/2013 |
Keywords
- GEOGRAPHY,
- GEOSCIENCES,
- ANOMALOUS FADING CORRECTION
- NORTHERN RUSSIA
- EEMIAN SITE
- LUMINESCENCE
- SIGNALS
- SAMPLES
- ACCURACY
- PROTOCOL
- Infra-red stimulated luminescence (IRSL)
- Time resolved IRSL (TR-IRSL)
- Pulsed IRSL
- Post IR - IRSL
- Retrospective dosimetry
- Anomalous fading