X-ray detector
AssigneeGeneral Electric Company
InventorsJeffery Jon SHAW, Eric Patrick DAVIS
Life of this patent
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Abstract
An X-ray detector has a layered structure that includes a substrate, a TFT array disposed on the substrate, a photodiode layer disposed on the TFT array, and a scintillator layer disposed on the photodiode layer. The scintillator layer comprises a particle-in-binder composite that contains a continuous parylene matrix having dispersed therein a plurality of particles that include a scintillator material that emits light in response to the absorption of X-rays.
Claims24
An X-ray detector having a layered structure comprising:
- a substrate;
- a TFT array disposed on the substrate;
- a photodiode layer disposed on the TFT array;
- and
- a scintillator layer disposed on the photodiode layer;
- wherein the scintillator layer comprises a particle-in-binder composite comprising a continuous parylene matrix having dispersed therein a plurality of particles having an average particle size ranging from 0.5 μm to 50 μm and comprising gadolinium oxysulfide doped with at least one of terbium and europium.
(canceled)
(canceled)
A process for fabricating an X-ray detector, the process comprising
- disposing a photodiode layer on a TFT array disposed on a substrate;
- and
- disposing a scintillator layer on the photodiode layer;
- wherein the scintillator layer comprises a particle-in-binder composite comprising a continuous parylene matrix having dispersed therein a plurality of particles having an average particle size ranging from 0.5 μm to 50 μm and comprising gadolinium oxysulfide doped with at least one of terbium and europium, cesium iodide doped with thallium, or lutetium oxide doped with europium.
(canceled)
An X-ray imaging system comprising an X-ray detector having a layered structure comprising:
- a substrate;
- a TFT array disposed on the substrate;
- a photodiode layer disposed on the TFT array;
- and
- a scintillator layer disposed on the photodiode layer;
- wherein the scintillator layer comprises a particle-in-binder composite comprising a continuous parylene matrix having dispersed therein a plurality of particles having an average particle size ranging from 0.5 μm to 50 μm and comprising gadolinium oxysulfide doped with at least one of terbium and europium, cesium iodide doped with thallium, or lutetium oxide doped with europium.
(canceled)
A scintillator screen comprising a particle-in-binder composite, the composite comprising a continuous parylene matrix having dispersed therein a plurality of particles having an average particle size ranging from 0.5 μm to 50 μm and comprising gadolinium oxysulfide doped with at least one of terbium and europium, cesium iodide doped with thallium, or lutetium oxide doped with europium.
(canceled)
Dependencies are inferred from the claim text.