Our team of experts will accompany you throughout your X-ray Tomography analysis project, from problem formulation to its resolution.

We have access to the entire TESCAN  instrumental park, which recently integrated the micro-CT range. We will provide you with complete results and a detailed report to discuss with our engineers. 

Not sure if X-ray tomography is the right technique for you? Do not hesitate to contact us in order to find the best suited technique for your needs.
 
 

Tomography RX principle


X-ray absorption tomography (X-ray tomography) is a non-destructive imaging technique that allows to obtain the external and internal 3D structures of a solid material. The lateral resolution of this analysis can go below the micrometer depending on the size and nature of the sample. X-ray tomography is used in many fields, from biology to aeronautics, from food processing to microelectronics... and on all types of samples. The analysis takes place in an atmosphere where temperature and humidity level can be controlled.

X-ray tomography allows you to explore the architecture of a solid material with a lateral resolution down to 1 micrometer.

X-ray tomography is based on the multidirectional analysis of the interactions between the X-ray beam and the material. The transmitted radiation is recorded by the detector, providing a 2D X-ray image with grey contrasts depending on the attenuation of the X-ray beam by the different materials present in the sample. The absorption of this beam will be correlated to: the thickness, density and chemical composition of the observed areas.

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The sample is positioned on a rotating plate, allowing the collection of these radiographs at different angles (from -180° to 180° or from -90° to 90°). The number of scans recorded as well as the chosen step are related to the resolution of the 3D reconstruction obtained.

The principle of this technique is based on the use of an X-ray beam passing through an object positioned on a rotating plate. 2D images of the sample are then collected from different angles, for a 3D reconstruction of the object using reprocessing software.

The collected data will be processed with a reconstruction software giving access to a 3D visualization with the following information on the sample: shape, size, spatial distribution, heterogeneity and others (inclusions, pores, phases ...). The reconstructed object can then be manipulated in all spatial directions and, thanks to high resolution 3D imaging, sections can be made. It is also possible to perform dynamic measurements, when the kinetics of the chemical or physical phenomena of interest are compatible with the acquisition time of the technique.

2D RADIOGRAPHY

Two-dimensional imaging of a sample volume
By the detection of transmitted X-rays.
 

3D TOMOGRAPHY

Reconstruction of the entire internal and external structure of the sample 
It provides the complete architecture of the sample volume with a micron resolution.

DYNAMIC MEASUREMENT

Monitoring of kinetics 
X-ray images are collected throughout the course of a dynamic phenomenon within a sample.

HEAT MODE

Using a heated and humidified enclosure
The temperature of the chamber can be controlled between room temperature and 50°C. The relative humidity in the analysis chamber can also be varied in the range of 3 to 95%.
Not all combinations are compatible.

PERMEABILITY MEASUREMENT

Use of a flow bench 
This module allows the study of the porosity of heterogeneous porous materials at room temperature or submitted to different temperatures.
 

Tescan UniTOM technical specifications

  • X-ray source: 300 W (30 - 180 kV)
  • Maximum resolution: 3 microns
  • Maximum sample size: 1 m height, 60 cm diameter, 45 kg
  • Heating range: Tambient to 50 °C
  • Humidity: 3 to 95%.

Tomography RX strenghts

  • Non-destructive 3D imaging
  • Resolution can be improved under 3 microns
  • Analysis of "large" samples up to 1 m high and 45 kg 
  • All types of samples