G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 23/06 (2006.01) A61B 6/02 (2006.01) G01N 23/04 (2006.01) G01N 23/08 (2006.01) G01T 1/24 (2006.01)
Patent
CA 2484945
A method for detection of ionizing radiation comprises the steps of (i) directing ionizing radiation towards an object (7) to be examined; (ii) preventing Compton scattered radiation (3a, 3c), preferably at least 99% of the radiation Compton scattered in said object, from being detected; and (iii) detecting ionizing radiation spatially resolved as transmitted through said object to reveal a spatially resolved density of said object, wherein said ionizing radiation is provided within a spectral range such that more, preferably much more, photons of said ionizing radiation are Compton scattered than absorbed through the photoelectric effect in said object to thereby reduce the radiation dose to said object.
L'invention concerne un procédé de détection de rayonnement ionisant consistant à (i) orienter le rayonnement ionisant vers un objet (7) à examiner; (ii) éviter que le rayonnement diffusé Compton (3a, 3c), de préférence au moins 99 % du rayonnement Compton étant diffusé dans ledit objet, ne soit détecté; et (iii) détecter le rayonnement ionisant à résolution spatiale transmis par l'intermédiaire dudit objet afin de révéler une densité à résolution spatiale dudit objet, ledit rayonnement ionisant étant compris dans une fourchette spectrale telle que plus, de préférence bien plus, de photons dudit rayonnement ionisant sont diffusés selon la technique Compton par rapport à ceux absorbés par l'effet photoélectrique dudit objet afin de réduire, de ce fait, la dose de rayonnement affectant ledit objet.
Francke Tom
Sokolov Skiff
Shapiro Cohen
Xcounter Ab
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