• Chemistry and Materials

In-situ testing under X-ray imaging (ISIS4D)



ISIS4D platform is dedicated to X-ray microtomography - a non-destructive imaging technique allowing to characterize the internal structure of materials. We have a microtomograph equipped with two X-ray generators as well as several detectors to cover a wide range of resolutions (from 0.4μm to 100μm) and applications (metallic, geological, organic, composite, biological, textile and paleontological materials). In particular, we conduct studies of three-dimensional characterization of the microstructure of materials (dimensional control, characterization of defects) as well as in situ studies under complex loading (coupled multi-physical and multi-axial solicitations). We are open to all academic and industrial collaborations and propose services in line with our expertise.


  • Nathalie Limodin
    Research director
  • Thomas Rougelot
    Scientific manager
  • Jérôme Hosdez
    Technical manager


Bâtiment M6, avenue Paul Langevin
Campus Cité scientifique, Université de Lille


In-situ testing under X-ray imaging

Chiffres clés

• About 21 projects per year, including 1 industrial (year 2019)
• More than 2500 hours of acquisitions and more than 25 TB of data generated since the inauguration
• 1.3 M€ invested in equipment, nearly 60 000 € annual budget
• Over 40TB of storage


Effectif total : 3



• Three-dimensional characterisation of the microstructure of a wide range of materials (geomaterials, metal alloys, polymers, composites, etc.).
• Scientific and technical assistance, user support and expertise
(i) as a pre-test for the development of the experiment
(ii) for the choice of acquisition parameters, settings, data reconstruction, etc.
• Processing and analysis of reconstructed data including the use of digital volume correlation with YaDICs open source software developed in-house
• Development of tests for in situ monitoring of the microstructure evolution under coupled multi-physical and multi-axial stresses
(i) Tension-torsion fatigue…
(ii) Chemical damage to concrete
(ii) Couplings between microtomography and other experimental measurements (infrared thermography, image correlation, ...)

Example(s) of projects

• Characterization of a graphite cast iron 🡭
• Influence of foundry defects on the mechanical behavior of aluminum alloys 🡭
• Multi-scale interactions in braking systems and aeronautical compressors 🡭

Collaborations/Partners/Scientific clients

Institut Mines Télécom, LAMIH, Université Polytechnique des Hauts-de-France, UPMC, UTC, INSA Lyon, Ecole Polytechnique, Polytech Lille

Free University of Brussels (Belgium)

Collaborations/Partners/Private Clients

Groupe PSA, Décathlon, Andra

Services offers

Applications sectors

  • Construction / Architecture / Urban planning / Real Estate
  • Health / wellness
  • Automotive industry
  • Materials (Metal, Glass, Ceramic, Composite...)
  • Science / Research
  • Railway industry

Services provided

• Detection and characterization of defects (detection of foreign bodies, porosities, cracks, delamination, etc.)
• Dimensional analysis (measurement of wall thicknesses, identification of assembly anomalies, etc.)
• Mesh generation (surface or volume) from real geometry
• Numerical simulations to anticipate defects during design
• Mechanical tests in situ
• Monitoring by correlation of volume images (measurements of displacement fields)

Training offers

Training in image acquisition and processing

Consulting services

We provide consulting services related to all our areas of expertise.


The platform comprises:
• a Ultratom Microtomograph from RX Solutions with two X-ray generators (protected by a leaded enclosure)
• existing or developing in situ devices
• a software for volume field measurements
• two 3D image reconstruction and processing stations
• a 36TB raw data storage server

See the detailed list of quipment: https://isis4d.univ-lille.fr/qui-sommes-nous/moyens-a-disposition/


Nom Modèle Marque
Microtomograph with two X-ray generators Ultratom/ RXSolutions
Ultra fast reconstruction station HP
Planar and linear sensors 25200/C10400/ Varian/Hamamatsu
Triaxial cells under microtomography
In situ traction/compression machines
Radiation protection enclosure Lemer Pax
High resolution cameras C4742-56-12HR/MH110MC-KK-FA/ Ximea/Hamamatsu
image intensifier C10400/ Hamamatsu


Affiliated institutions / organisations

Centrale Lille

Partner institution(s)

IMT Lille Douai
Université du Littoral Côte d'Opale (ULCO)
Université Polytechnique Hauts-de-France (UPHF)
Ecole Nationale Supérieure des Arts et Industries Textiles (ENSAIT)

Unit(s) of attachment


Competitive cluster


Regional strategic areas of activity

  • Chemistry and Materials
    • Industrial processes engineering, efficient processes
    • Textiles, composites, materials