Radiography by selective detection of scatter field velocity...

G - Physics – 01 – V

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G01V 5/00 (2006.01) G01T 1/161 (2006.01)

Patent

CA 2576088

A reconfigurable collimated radiation detector, system and related method includes at least one collimated radiation detector. The detector has an adjustable collimator assembly including at least one feature, such as a fin, optically coupled thereto. Adjustments to the adjustable collimator selects particular directions of travel of scattered radiation emitted from an irradiated object which reach the detector. The collimated detector is preferably a collimated detector array, where the collimators are independently adjustable. The independent motion capability provides the capability to focus the image by selection of the desired scatter field components. When an array of reconfigurable collimated detectors is provided, separate image data can be obtained from each of the detectors and the respective images cross-correlated and combined to form an enhanced image.

L'invention porte sur un système de détection de radiations collimaté reconfigurable comportant au moins un détecteur de radiations collimaté. Le système de détection consiste en un ensemble de collimateurs réglable présentant au moins un accessoire tel qu'une ailette, leur étant couplée optiquement. Cette possibilité de réglage permet se sélectionner une direction de parcours des radiations diffusées émises par un objet radiant atteignant le système de détection, qui consiste en un ensemble de collimateur réglables séparément. Cette indépendance de mouvement permet de focaliser l'image en sélectionnant les composantes désirés du champ de diffusion. Si on utilise un ensemble de détecteurs reconfigurables collimatés, on obtient de chacun des données d'image séparées, et par corrélation croisée et combinaison de leurs images respectives, on peut obtenir une image améliorée.

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