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Wilder 3-Dimensional Imaging Lab
CT Scanning and Archaeological Conservation
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With
the kind assistance of the staff of St. Joseph Regional
Medical Center and CT (computed tomographic) technologies,
we have conducted important pre-conservation analysis of
artifacts.
Using these scans, we are able
to thoroughly view complex artifacts. Data obtained from
scans can then be converted into a variety of CAD formats
that are utilized at the Wilder Lab for analysis, rapid
prototype replications and for animated modeling videos. |
| A concreted artifact is positioned in the CT imaging
unit. |
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| CT Imaging technician, Tony scans the artifact |
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Using sophisticated computer programming, conservators
are able to assess the state of delicate artifacts before
attempts are made to excavate them from surrounding soil.
In some cases, removal of soil can be conducted on screen,
using programmable density mapping techniques. By conducting
virtual excavations of fragile material culture, stereo
lithographic reproductions of artifacts can be made. These
replications serve as 3-D models for excavation difficult
artifacts and in some cases, are all that remain when some
materials are lost.
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| The completed scan of the concretion reveals that
inside the rock hard exterior is a bronze nail (clenched) and
possibly evidence of a treenail, joining sections of wood. |
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