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High-definition digital X-ray flat panel detector

A flat-panel detector, high-definition technology, used in radiation intensity measurement, layered products, etc., can solve the problems of image resolution reduction and X-ray flat-panel detector image quality degradation, and achieve the effect of increasing image quality.

Inactive Publication Date: 2014-04-02
江苏龙信电子科技有限公司
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Problems solved by technology

[0003] However, since X-rays need to be converted into visible light by the scintillator and must be effectively transmitted, the scintillator is transparent, and the visible light generated must have light scattering. Transistor (a-Si+TFT) unit, which will inevitably cause the image quality of the X-ray flat panel detector to decline, and because the cesium iodide material is a hygroscopic material, when it absorbs moisture in the air and deliquesces, it will cause Scintillator properties, especially image resolution are greatly reduced

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Embodiment Construction

[0019] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0020] see figure 1 , the embodiment of the present invention includes: a high-definition digital X-ray flat panel detector, including: a protective layer 1, an electrode layer 2, an insulating layer 3, an X-ray semiconductor layer 4, an electron sealing layer 5, an amorphous selenium layer 6, a thin film transistor Layer 7, storage capacitor 8, charge amplifier 9, gate control circuit 10, digital converter 11 and glass substrate 12, the protective layer 1 is connected to the electrode layer 2, and the material of the protective layer 1 is PET, PET The thermal deformation temperature and long-term service temperature of the thermoplastic general ...

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Abstract

The invention discloses a high-definition digital X-ray flat panel detector which comprises a protective layer, an electrode layer, an insulating layer, an X-ray semiconductor layer, an electronic closing layer, an amorphous selenium layer, a thin film transistor layer, a storage capacitor, a charge amplifier, a gate control circuit, a digital converter and a glass substrate. With the adoption of the mode, the high-definition digital X-ray flat panel detector eliminates image blurring caused by photoelectric scattering, ensures the quality of an image, and can be very reliable in a high-humidity and completely-exposed environment.

Description

technical field [0001] The invention relates to the field of digital imaging, in particular to a high-definition digital X-ray flat panel detector. Background technique [0002] The X-ray flat panel detectors currently in circulation in the domestic and foreign markets are all developed based on the detection technology of the amorphous silicon thin film transistor (Thin Film Transistor, TFT) array. There are two types in principle: one is the indirect energy conversion type, such as Siemens, Philips, GE, and PerkinElmer's products, and the other is the direct energy conversion type, such as HOLOGIC's products. [0003] However, since X-rays need to be converted into visible light by the scintillator and must be effectively transmitted, the scintillator is transparent, and the visible light generated must have light scattering. Transistor (a-Si+TFT) unit, which will inevitably cause the image quality of the X-ray flat panel detector to decline, and because the cesium iodide...

Claims

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Application Information

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IPC IPC(8): G01T1/20B32B33/00
Inventor 范波
Owner 江苏龙信电子科技有限公司
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