X-ray detector and method for production of x-ray images with spectral resolution
First Claim
Patent Images
1. An X-ray detector, comprising:
- a plurality of layers arranged having a bottom layer and at least a second layer, a third layer and a fourth layer stacked on top of the bottom layer in succession in a direction parallel to a direction of the x-rays, each of the plurality of layers comprising;
at least one photodiode that is produced from a semiconducting organic material and is applied on a film sub-layer, and a luminophore sub-layer applied on the photodiode, and a light-reflecting sub-layer provided on the luminophore sub-layer,the bottom layer comprising a photodiode matrix formed of a plurality of photodiodes that include the at least one photodiode of the bottom layer;
the second layer comprising a photodiode matrix formed of a plurality of photodiodes that include the at least one photodiode of the second layer;
said third layer comprising a photodiode matrix formed of a plurality of photodiodes that include the at least one photodiode of said third layer;
said fourth layer comprising a photodiode matrix formed of a plurality of photodiodes that include the at least one photodiode of the fourth layer;
the at least one photodiode of the bottom layer being arranged displaced relative to the at least one photodiode of the second layer;
the at least one photodiode of the third layer being arranged displaced relative to the at least one photodiode of the fourth layer, with the at least one photodiode in each of said bottom layer and said third layer overlying one another, and the at least one photodiode in each of said second and fourth layers overlying one another to spectrally resolve an x-ray spectrum that is incident on said plurality of layers; and
an amplifier associated with the at least one photodiode in said bottom layer in said bottom layer directly below the at least one photodiode in said second layer.
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Abstract
The invention concerns an x-ray detector with a plurality of layers arranged one top of one another in the incident direction of the x-rays, whereby each of the layers comprises at least one photodiode and a luminophore layer applied thereon.
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Citations
17 Claims
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1. An X-ray detector, comprising:
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a plurality of layers arranged having a bottom layer and at least a second layer, a third layer and a fourth layer stacked on top of the bottom layer in succession in a direction parallel to a direction of the x-rays, each of the plurality of layers comprising; at least one photodiode that is produced from a semiconducting organic material and is applied on a film sub-layer, and a luminophore sub-layer applied on the photodiode, and a light-reflecting sub-layer provided on the luminophore sub-layer, the bottom layer comprising a photodiode matrix formed of a plurality of photodiodes that include the at least one photodiode of the bottom layer; the second layer comprising a photodiode matrix formed of a plurality of photodiodes that include the at least one photodiode of the second layer; said third layer comprising a photodiode matrix formed of a plurality of photodiodes that include the at least one photodiode of said third layer; said fourth layer comprising a photodiode matrix formed of a plurality of photodiodes that include the at least one photodiode of the fourth layer; the at least one photodiode of the bottom layer being arranged displaced relative to the at least one photodiode of the second layer; the at least one photodiode of the third layer being arranged displaced relative to the at least one photodiode of the fourth layer, with the at least one photodiode in each of said bottom layer and said third layer overlying one another, and the at least one photodiode in each of said second and fourth layers overlying one another to spectrally resolve an x-ray spectrum that is incident on said plurality of layers; and an amplifier associated with the at least one photodiode in said bottom layer in said bottom layer directly below the at least one photodiode in said second layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for utilizing an X-ray detector with spectral resolution, comprising:
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providing a plurality of layers including a bottom layer, a second layer, a third layer and a fourth layer, and arranging said plurality of layers with said second, third and fourth layers stacked in succession on top of the bottom layer in a direction parallel to a direction of the x-rays; forming each of the plurality of layers to comprise at least one photodiode that is produced from a semiconducting organic material and is applied on a film sub-layer, and a luminophore sub-layer applied on the photodiode, and a light-reflecting sub-layer provided on the luminophore sub-layer, in the bottom layer, providing a photodiode matrix formed of a plurality of photodiodes that include the at least one photodiode of the bottom layer; in the second layer, providing a photodiode matrix formed of a plurality of photodiodes that include the at least one photodiode of the second layer; in said third layer, providing a photodiode matrix formed of a plurality of photodiodes that include the at least one photodiode of the third layer; in the fourth layer, providing a photodiode matrix formed of a plurality of photodiodes that include the at least one photodiode of the fourth layer; arranging the at least one photodiode of the bottom layer displaced relative to the at least one photodiode of the second layer; arranging the at least one photodiode of the third layer displaced relative to the at least one photodiode of the fourth layer; arranging the at least one photodiode of the third layer to over layer to overlap the at least one photodiode of the bottom layer and arranging the at least one photodiode of the fourth layer to overlap the at least one photodiode of the second layer to produce an x-ray detector that spatially resolves an x-ray spectrum incident on said plurality of layers; and providing an amplifier associated with the at least one photodiode in said bottom layer is arranged in said bottom layer directly below the at least one photodiode in said second layer; and measuring the x-ray spectrum in a spectrally resolved manner with said x-ray detector to produce the x-ray spectrum; and
producing a spectrally-resolved x-ray image. - View Dependent Claims (14, 15, 16, 17)
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Specification