A CT scan, also called X-ray computed tomography (X-ray CT) or computerized axial tomography scan (CAT scan), makes use of series of 2D X-ray images of an object taken from different angles (see left-hand image in figure below) to produce 3D cross-sectional (tomographic) images (virtual ‘slices’) of a scanned object (see right-hand image in figure below). This 3D reconstruction from a CT scan allows the user to see inside the object without destroying the structure and produces contrast between different material types depending upon their relative composition and density. A micro-CT scanner is specifically designed to study small objects (1 mm to 20 cm diameter) at high resolutions (1 to 70 micrometer).
Micro-CT Images of a Foram
The TrACEES platform offers micro-CT scans of objects using a GE phoenix nanotom m micro-CT scanner (pictured in title banner). Examples of objects range from biological, geological to engineered specimens with capabilities and case studies outlined below.
A range of services are offered through the TrACEES platform, including:
– High resolution scans using a nanotom m micro-CT scanner
– Segmentation and quantitative data analysis
– Quality control, material assessment
– Method development for publication
– Visualisation and animation within objects
– Surface meshes for modelling and 3D printing
Examples of object types and analyses which can be conducted using this technique include:
|Biological samples:||Imaging soft tissue and skeletal structure of preserved animals; quantifying segmented structure volume and distances; plant root distribution in soil|
|Geological samples:||Imaging mineralogical heterogeneity; grain size distribution, quantifying porosity and pore network analysis; simulated permeability; fossil structures|
|Engineered samples:||Imaging composite materials; quantifying aggregate or particle distributions; imaging fractures and pores within manufactured objects; 500 Newton compressive-tensile stage testing|
Contact / Consultation
Dr Jay Black, Academic specialist
School of Earth Sciences, The University of Melbourne, Victoria 3010
Workshops are organised on an annual basis. Please see our event page for details.