X-ray detector and radiographic X-ray apparatus
AssigneeSharp Display Technology Corporation
InventorKozo Takahashi
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Abstract
An X-ray detector includes a plurality of scintillators each configured to convert incident X-rays into light and emit the light, a plurality of low refractive layers that are alternately stacked with the plurality of scintillators and that have a refractive index lower than the scintillators, and a photoelectric conversion element array including a plurality of arrayed photoelectric conversion elements each configured to convert the light emitted from the alternately stacked scintillators and low refractive layers into an electrical signal. At least one of the scintillator and the low refractive layer includes a light collecting portion that focuses the emitted light toward a corresponding one of the photoelectric conversion elements.
Claims5
An X-ray detector comprising:
- a plurality of scintillators, each configured to convert incident X-rays into light and emit the light;
- a plurality of low refractive layers that is alternately stacked with the plurality of scintillators and that has a refractive index lower than the plurality of scintillators;
- a photoelectric conversion element array including a plurality of arrayed photoelectric conversion elements, each configured to convert the light emitted from the plurality of scintillators and light emitted from the plurality of low refractive layers into an electrical signal;
- and
- a semi-reflecting layer, having a first surface in contact with, and adjacent to, one of the plurality of scintillators, and having a second surface opposite the first surface, uniformly stacked over an entire surface of the one of the plurality of scintillators on an X-ray incident side, the semi-reflecting layer configured to:
- reflect light obtained by converting an X-ray incident on the first surface, and
- transmit light obtained by converting an X-ray incident on the second surface,
- wherein at least one of the plurality of scintillators and the plurality of low refractive layers includes a light collecting portion that focuses the emitted lights toward a corresponding one of the plurality of arrayed photoelectric conversion elements.
Dependencies are inferred from the claim text.