Welcome to the TomoLab

X-ray computed microtomography (micro-CT) is one of the most advanced techniques in the field of nondestructive evaluation tests. It allows imaging of the internal microstructure of different objects and materials, measuring the three-dimensional (3D) X-ray attenuation coefficient map of the sample. Thanks to this technique, the distribution of regions with different density and/or chemical composition inside the sample can be visualized by means of virtual slicing or using 3D volume rendering procedures.The TomoLab station at Elettra is an instrument offering scientists and engineers access to a state-of-the-art micro-CT system based on a microfocus source. The TomoLab has been designed as complementary to the SYRMEP beamline setup for micro-CT both fot the energy range available and for the X-ray beam size at sample. Due to the cone-beam geometry it is possible to achieve a spatial resolution close to the focal spot size. Wilkins & co. in 1996 have shown that radiographs made using the polychromatic beam from a microfocus X-ray generator do reveal phase jumps. Then, thanks to this property, at the TomoLab station it is possible to perform phase-contrast microCT measurements, also if a limited  spatial coherence with respect to a synchrotron X-ray beam could be achieved.
Because X-ray micro-CT is a nondestructive characterization technique, it represents a powerful investigation tool in many different applications, especially in the area of material science as well as geology or biomaterials. Through image analysis processing tools, it is possible to obtain quantitative information from the investigated samples. In particular, geometrical or morphological features inside the sample volume can be analysed and useful specific parameters can be extracted.

There is a wide range of industrial fields of interest, from mechanical components and electronic devices, to aerospace manufacturing. Concerning materials science, a micro-CT analysis is capable to analyze failure mechanisms, micro-cracks formation and propagation, internal defects, morphological details, stress-strain behaviour, and is generally useful when a correlation between physical and microscopic properties is required. In the field of earth science, the investigation of rocks and soils pore structure is important for both hydrogeology and petroleum engineering. Different kinds of porous media, like metallic and polymeric foams, can be also investigated by X-ray micro-CT. Other important applications are in the field of food science, wood industry and conservation of archeological finds.

Research highlights

3D analysis of the canal network of an Indonesian Stylaster by means of X-ray mCT

This study describes the architecture of the coenosteal network in an Indonesian Stylaster species investigated by means of the X-ray computed microtomography  technique.
  S. Puce et. al; Zoomorphology, 130 (2011) 85-95.

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Texture analysis of volcanic rock samples: a quantitative study from X-ray microCT data

In the texture analysis of volcanic rocks, the preferred orientation of the constituents can provide useful information for the interpretation of the processes involved in the rock formation.     M. Voltolini et. al; J. of Volcanology and Geothermal Research 202 (2011) 85-95.

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Gold nanoparticle labeling of cells to elaborate animal models of human disease

Gold nano-particles have been used as a permanent marker of implanted normal and malignant cell grafts in combination with a suitable x-ray apparatus. R.-H. Menk et. al; Nanomedicine: Nanotechnology, Biology and Medicine 7 (2011) 647-54.

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X-ray computed microtomography of the Divje Babe ‘flute’

Here, we show the results of X-ray computed micro-tomography (mCT) performed on the Divje babe ‘flute’. C. Tuniz et. al; Archaeometry 54 (2012) 581–590.

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Micro-CT Evaluation of Glide Path with Nickel-Titanium Rotary PathFile in Maxillary First Molars Curved Canals

In this study, conventional X-ray computed microtomography was used to compare the ability of manual and mechanical glide path to maintain the original root canal anatomy.

D. Pasqualini et. al; Journal of Endodontics, 38 (2012) 389-393.

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The TomoLab station is operational since 2006 and it has been realized by a collaboration between ELETTRA and Dipartimento di Ingegneria Civile e Ambientale and Corso di Laurea Odontoiatria e Protesi Dentaria of the Università diTrieste.



Last Updated on Sunday, 06 November 2016 17:09