Probing Earth interior through innovative imaging techniques
| Quand ? |
Le 16/01/2023, de 11:00 à 12:00 |
|---|---|
| Où ? | Salle Condorcet |
| Participants |
Jacques Marteau |
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Muography is an imaging technique based on the detection of naturally produced particles in the atmosphere, muons, and adapted to structures that are typically opaque to standard methods, either because they are too large, too dense, or because they are located in "blind" or inaccessible environments. Depending on the needs, muography is used in "absorption" mode (by exploiting the stopping of the least energetic muons, as in X-ray imaging), or in "scattering" mode (for muons passing through). The evaluation of target properties (density and chemical composition) from the modification of the muon flux uses "inverse problems" techniques. Muography offers imaging and monitoring capabilities that have been widely used in geoscience applications, but the field extends to other disciplines such as archaeology, civil engineering, internal security, etc. It represents an example of imaging development made possible by innovations in particle physics, both technological and methodological, which we will give an overview of in this presentation.