X-ray detector with in-pixel processing circuits
a, b12The invention relates to an X-ray detector with an array of pixels that are composed of a scintillation layer, a coupling layer, and a sensitive layer. The coupling layer comprises light guiding units and shielding units, wherein the shielding units are disposed above electronic processing cir...
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| Main Authors | , |
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| Format | Patent |
| Language | English |
| Published |
01.12.2009
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| Online Access | Get full text |
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| Summary: | a, b12The invention relates to an X-ray detector with an array of pixels that are composed of a scintillation layer, a coupling layer, and a sensitive layer. The coupling layer comprises light guiding units and shielding units, wherein the shielding units are disposed above electronic processing circuits that are susceptible to disturbances by X-radiation. In an alternative embodiment, the coupling layer comprises a material like lead-glass that is transparent for light and absorbing for X-radiation. Preferably a wavelength-shifting material incorporated into the coupling layer shifts the wavelength (λ) of the photons generated in the scintillation layer to values (λ) at which the sensitive layer has a higher sensitivity. |
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