The use of sodium polytungstate as an X-ray contrast agent to reduce the beam hardening artifact in hydrological laboratory experiments
Iodine is conventionally used as a contrast agent in hydrological laboratory experiments using polychromatic X-ray computed tomography (CT) to monitor two-phase Darcy flow in porous geological media. Undesirable beam hardening artifacts, however, render the quantitative analysis of the obtained CT i...
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Format: | Article |
Language: | English |
Published: |
Sciendo
2013-12-01
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Series: | Journal of Hydrology and Hydromechanics |
Subjects: | |
Online Access: | https://doi.org/10.2478/johh-2013-0043 |