X-ray detector module
AssigneeKoninklijke Philips Electronics N.V.
InventorHerfried Karl Wieczorek
Life of this patent
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Abstract
An X-ray detector module (1) is provided, in which a preferably metallic carrier (3) forms tubular cells (4) in which there is provided a mixture of a binder (7) and scintillator particles (6). The absorption of X-rays by the scintillator particles (6) gives rise to the emission of light of a longer wavelength (λ1, λ2) that can be detected by a detector (5) arranged at the far end of the cells (4). In order to keep the light yield as high as possible, a difference of less than 20% is pursued between the refractive indices of the binder (7) and the scintillator particles (6) and/or nano-crystalline scintillator particles (6) of a size of between 1 and 100 nm are used. Preferably, the cell walls (3, 3′) are extended in the direction of incidence of the X-rays in order to form an anti-scatter grid above the detector.
Claims11
An X-ray detector module (1) which includes a carrier (3) that forms cells (4) arranged in the form of a grid and is made of a material that is essentially non-transparent to X-rays, wherein a mass of scintillator particles (6), having a grain size in the range of between 1 nm and 50 nm, that are embedded in a binder (7) and emit light in the range of a longer wavelength λ in response to the absorption of X-rays is provided in the cells (4), and wherein the difference between the refractive index of the scintillator particles (6) and the refractive index of the binder (7) for the wavelength λ amounts to less than 20% and preferably less than 10%.
Dependencies are inferred from the claim text.