an overview of high-resolution x-ray computed tomography (hrxct) data acquisition and applications...

An Overview of High-Resolution X-rayComputed Tomography (HRXCT) Data

Acquisition and Applications

Jessica Maisano

Jackson School of Geosciences

The University of Texas at Austin

Both industrial and medical CT:– Utilize the differential attenuation (intensity

decrease) of X-rays– Attenuation is a function of density and atomic

number

Industrial differs from medical CT:– Sample rotates between source and detector– Higher energy X-rays– Longer acquisition times– Smaller X-ray focal spots + more densely

packed detectors

Sus scrofaWild Pig

Sus scrofaWild Pig

Sus scrofaWild Pig

Sus scrofaWild Pig

Peltosaurus granulosus

Gerrhonotus infernalis

Peltosaurus granulosus

Peltosaurus granulosus

Peltosaurus granulosus

Heloderma suspectumGila Monster

Heloderma suspectumGila Monster

Chamaeleo calyptratusVeiled Chameleon

Oboe ReedsRebecca Henderson, UT Austin

Oboe ReedsRebecca Henderson, UT Austin

Arundo donax, Giant Cane

pith bladesvascularbundle

Oboe ReedsRebecca Henderson, UT Austin

The Archaeoraptor ForgeryRowe et al., 2001

The Archaeoraptor ForgeryRowe et al., 2001

30

220

The Archaeoraptor ForgeryRowe et al., 2001

30

220

The Archaeoraptor ForgeryRowe et al., 2001

• Adjacent fracture-face geometries• Thickness/density of adjacent pieces• Cross-cutting relationships of fractures• Grout distribution• Invertebrate burrows

The Archaeoraptor ForgeryRowe et al., 2001

The Archaeoraptor ForgeryRowe et al., 2001

The Archaeoraptor ForgeryRowe et al., 2001

The Archaeoraptor ForgeryRowe et al., 2001

The Archaeoraptor ForgeryRowe et al., 2001

The Archaeoraptor ForgeryRowe et al., 2001

The Archaeoraptor ForgeryRowe et al., 2001

The Archaeoraptor ForgeryRowe et al., 2001

The Archaeoraptor ForgeryRowe et al., 2001

The Archaeoraptor ForgeryRowe et al., 2001

Name that scan…

Name that scan…

Potato ChipsPawan Takhar, Texas Tech

Aepyornis maximusElephant Bird

Aepyornis maximusElephant Bird

Aepyornis maximusElephant Bird

MorganucodonTriassic Mammaliaform

1 mm

www.ctlab.geo.utexas.edu www.digimorph.org