Is X-ray core scanning non-destructive? Assessing the implications for optically stimulated luminescence (OSL) dating of sediments
✍ Scribed by Femke Davids; Helen M. Roberts; Geoffrey A. T. Duller
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 187 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0267-8179
- DOI
- 10.1002/jqs.1329
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✦ Synopsis
Abstract
Optically stimulated luminescence (OSL) dating is widely used to date clastic deposits, including those collected by coring. X‐ray scanning of cores has become popular because of the rapidly acquired, high‐resolution information it gives about optical, radiographic and elemental variations. Additionally, X‐ray scanning is widely viewed as a non‐destructive method. However, such instruments use an intense X‐ray beam that irradiates the split core to enable both X‐radiographic and X‐ray fluorescence (XRF) analysis. This irradiation will influence the optically stimulated luminescence signal in the sediments. This study determines the radiation dose delivered to sediments in a core during an X‐ray scan, and assesses the implications for studies wishing to combine X‐ray scanning and OSL dating. Copyright © 2009 John Wiley & Sons, Ltd.