I’m going to India on Saturday mainly just to go to India. However, in order to justify the trip, I’m giving a talk on Tuesday, 13. March in Bangalore on x-ray tomography. If anyone happens to be in the area, please come! I’ll try to post a summary of the key points of the talk up either before I go or right after I get back.
My other goal for this trip to pick up a few pieces of Deccan flood basalt 🙂
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Raman Research Institute
Bangalore
Seminar
High-resolution X-ray Computed Tomography — a non-destructive method to
visualize the interior of solid objects
Elizabeth R. Goeke
Salem State University, USA
Abstract: Application of High-resolution X-ray computed tomography (CT) to
study the internal spatial relationships in a wide-range of geological
materials has grown in the past decade. CT scans are non-destructive,
relatively quick to obtain, and a wide-array of measurement and
visualization methods have been developed to analyze the data. Comparison
between CT methods and traditional destructive serial sectioning results in
analyses that closely correspond and are usually within error of each other.
The variation of X-ray attenuation within objects relates closely to density
and is used to differentiate between variations in the materials or phases
within the analyzed sample. High-resolution CT analysis has a scale of
resolution of approximately ~100 microns, while ultra-high-resolution scans
may reach ~10 microns. Commercial high-resolution CT scanners are
available and require only counter-top space for setup as well as several
computers to process the data. In addition to being safe to use on rare
samples such as meteorites and fossils, CT analysis has also been applied to
crystal size distribution studies in metamorphic and igneous rocks,
microstructural analysis of shear zones, characterization of soil and
pore-space morphology, and distribution of economic mineral genesis and
processing.
on Tuesday, 13 March 2012, at 11:30 a.m.
Venue: Library Block lecture hall
All are welcome