Simulation d'une nouvelle modalité d'imagerie basée sur le rayonnement X diffusé

Abstract : Patrimonial and ancient material objets having a attened geometry, i.e. having a large ratio between the top or bottom area and its thickness, are nowadays dicult to study with classic radiation tomography methods. A Compton Scatter Tomography (CST) approach is then envisaged. While incoherent (Compton) scattering data is usually considered as noise, it will be treated in this work as the primary phenomenon of the image formation process. In a Compton event, an incident photon of energy E0 is absorbed by a target electron, who re-emits a secondary photon scattered by an angle 'omega' relative to the direction of the original photon. The scattered photon has an energy E'omega' < E0 and it will be the collected information to perform the in-depth reconstruction, without the need of rotating the system. The energy loss is practically encoding the scattering angle information.
Type de document :
Communication dans un congrès
Congrès d’Analyse Numérique (CANUM), May 2016, Obernai (Alsace), France
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-01760008
Contributeur : Mai K. Nguyen <>
Soumis le : jeudi 5 avril 2018 - 21:40:36
Dernière modification le : vendredi 14 septembre 2018 - 09:56:10

Identifiants

  • HAL Id : hal-01760008, version 1

Citation

Patricio Guerrero Prado, Mai K. Nguyen, Laurent Dumas, Serge Cohen. Simulation d'une nouvelle modalité d'imagerie basée sur le rayonnement X diffusé. Congrès d’Analyse Numérique (CANUM), May 2016, Obernai (Alsace), France. 〈hal-01760008〉

Partager

Métriques

Consultations de la notice

149