G - Physics – 01 – T
Patent
G - Physics
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T
G01T 1/16 (2006.01) A61B 6/00 (2006.01) G01T 1/18 (2006.01) G01T 1/185 (2006.01) G01T 1/29 (2006.01) G01T 7/00 (2006.01) H04N 5/32 (2006.01)
Patent
CA 2476588
A scanning-based radiation detector arrangement for two-dimensional imaging of an object comprises a plurality of one-dimensional detector units (41, 41a), each comprising an entrance slit (43, 43a), through which ionizing radiation as transmitted through the object is enterable, and being arranged for one- dimensional imaging of the ionizing radiation, wherein the detector units are arranged in an array with their respective entrance slits (43, 43a) being parallel with each other and facing the source of the ionizing radiation. The detector arrangement further includes a rotating device (44; 64; 74; 86) for rotating the detector unit array in a plane perpendicular to the direction of the ionizing radiation, while the detector units are arranged to repeatedly detect, hence creating a series of two-dimensional images of the object.
L'invention concerne un arrangement de d~tecteurs de rayonnement ~ balayage, permettant la formation d'une image bidimensionnelle d'un objet. Cet arrangement comprend une pluralit~ d'unit~s de d~tection (41, 41a) unidimensionnelles, comprenant chacune une fente (43, 43a) d'entr~e ~ travers laquelle le rayonnement ionisant transmis ~ travers l'objet peut p~n~trer, et qui sont dispos~es de manire ~ permettre la formation d'une image unidimensionnelle du rayonnement ionisant. Les unit~s de d~tection sont dispos~es selon un arrangement dans lequel leurs fentes (43, 43a) d'entr~e sont parallles les unes aux autres et dirig~es face ~ la source du rayonnement ionisant. Cet arrangement de d~tecteurs comprend en outre un dispositif rotatif (44, 64, 74, 86) permettant d'entra¹ner en rotation l'ensemble d'unit~s de d~tection dans un plan perpendiculaire ~ la direction du rayonnement ionisant, les unit~s de d~tection ~tant arrang~es de manire ~ permettre des d~tections r~p~t~es, cr~ant ainsi une s~rie d'images bidimensionnelles de l'objet.
Francke Tom
Svedenhag Per
Shapiro Cohen
Xcounter Ab
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