Le site de vulgarisation scientifique de l’Université de Liège. ULg, Université de Liège
X-rays

Discovered in 1895 by Röntgen, x-rays are a form of highly energetic electromagnetic radiation that can travel through matter with a facility relative to the composition of this matter. X-ray technology is very present in our society. In medicine, it allows us to observe fractures or diagnose cancer. It is also found in security systems (metal detectors, etc.) or in instruments used to study the organisation of atoms within matter.

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