X-ray Computed Micro-Tomography (Micro-CT)

X-ray computed micro-tomography (micro-CT) is a non-destructive, three-dimensional imaging technique based on the differences in X-ray attenuation of the various components within a sample. It allows obtaining bi-dimensional cross-sections of materials and their 3D reconstruction without physically sectioning them. Compared to traditional CT scanners, micro-CT scanners can achieve sub-micrometric resolutions. In food, this technique can be used to study a wide range of samples, especially those that contain features with distinct densities. The obtained virtual 3D representation of the samples can be used to perform accurate measurements in any direction within the sample, using quantitative image analysis or even augmented reality tools. Our multiscale scanner has three different detectors for maximum flexibility in the type of materials, scales and sample sizes that can be analysed. The system also counts on in-situ temperature controlled stages to perform experiments at specific temperatures, and a mechanical loading stage to perform tensile/compression experiments and study mechanical-structural relationships in food.

This instrument was funded by Science Foundation Ireland and Teagasc.