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ITRAX: description and evaluation of a new multi-function X-ray core scanner
Abstract
A new automated multi-function core scanning instrument, named ITRAX, has been developed that records optical, radiographic and elemental variations from sediment half cores up to 1.8 m long at a resolution as fine as 200 μm. An intense micro-X-ray beam focused through a flat capillary waveguide is used to irradiate samples to enable both X-radiography and X-ray fluorescence (XRF) analysis. Data are acquired incrementally by advancing a split core, via a programmable stepped motor drive, through the flat, rectangular-section X-ray beam. Traditional XRF determination of element composition in sediments provides high-quality data, but it takes a considerable time and normally consumes gram quantities of material that is often only available in limited quantities. The ITRAX core scanner non-destructively collects optical and X-radiographic images, and provides high-resolution elemental profiles that are invaluable for guiding sample selection for further (destructive) detailed sampling. This paper presents a description of the construction, characteristics and capabilities of the ITRAX system. High-resolution ITRAX data obtained from sediment cores are also presented and compared with results from traditional wavelength-dispersive XRF analysis at lower resolution. Finally, some recent technical developments linked to the second-generation ITRAX are presented.
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Cited by
Weltje, G. J., & Tjallingii, R. (2008) · Earth and Planetary Science Letters · doi:10.1016/j.epsl.2008.07.054 · Cited by 787
Donnelly, J. P., & Woodruff, J. D. (2007) · Nature · doi:10.1038/nature05834 · Cited by 466
The legacy of 4,500 years of polyculture agroforestry in the eastern Amazon
Maezumi, S. Y., Alves, D., Robinson, M., de Souza, J. G., Levis, C., Barnett, R. L., Almeida de Oliveira, E., Urrego, D., Schaan, D., & Iriarte, J. (2018) · Nature Plants · doi:10.1038/s41477-018-0205-y · Cited by 205
Development of Middle Stone Age innovation linked to rapid climate change
Ziegler, M., Simon, M. H., Hall, I. R., Barker, S., Stringer, C., & Zahn, R. (2013) · Nature Communications · doi:10.1038/ncomms2897 · Cited by 196
Rothwell, R. G., & Croudace, I. W. (2015) · Developments in Paleoenvironmental Research · doi:10.1007/978-94-017-9849-5_1 · Cited by 94
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Metadata
- Authors
- Croudace, I. W., Rindby, A., & Rothwell, R. G.
- Venue
- Geological Society, London, Special Publications
- Publisher
- Geological Society of London
- Published
- 2006-01
- Volume
- 267
- Issue
- 1
- Pages
- 51-63
- ISSN
- 0305-8719 (ISSN-L)
- 2041-4927
- OpenAlex
- W1984879127
- Cited by
- 880
- References
- 0
- FWCI
- 9.66
- Type
- journal article
- Language
- en
- Open access
- closed
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- Croudace, I. W., Rindby, A., & Rothwell, R. G. (2006). ITRAX: description and evaluation of a new multi-function X-ray core scanner. Geological Society, London, Special Publications. https://doi.org/10.1144/gsl.sp.2006.267.01.04
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