Journal
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL
Volume 64, Issue 2, Pages 469-477Publisher
SOIL SCI SOC AMER
DOI: 10.2136/sssaj2000.642469x
Keywords
-
Categories
Ask authors/readers for more resources
Single photon emission computed tomography (SPECT) is an imaging technique that is widely used in medical diagnosis. This technique has never been applied to soils. The objective of this study was to investigate the capabilities of SPECT scanning for visualizing preferential flow in soil. This paper describes the principle of SPECT scanning and its application to tracer breakthroughs in four large undisturbed soil columns (800-mm length x 77-mm diam.). This new approach allows real-time analysis of flow patterns of radioactive tracers in 2-D using planar imaging, and in 3-D using the tomographic capabilities of the SPECT scanner. Not only does SPECT scanning provide qualitative data, but it also allows for the quantification of a tracer's spatial distribution. Our results chararterized preferential now very clearly in soil columns. SPECT scanning opens up ne,v avenues for 2-D and 3-D tracer studies in porous media such as soils.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available