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Digital X-ray flat panel detector

A flat panel detector and X-ray technology, applied in the field of X-ray imaging, can solve the problem of image resolution reduction and achieve good imaging performance

Inactive Publication Date: 2014-04-23
江苏龙信电子科技有限公司
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Problems solved by technology

[0002] The imaging performance of the digital X-ray flat panel detector mainly depends on the image resolution of the scintillation screen. Currently, the scintillator in the scintillation screen generally uses cesium iodide crystal, but the cesium iodide material is a hygroscopic material. When it absorbs When moisture deliquesces, it will affect the characteristics of the scintillator, especially the image resolution will be greatly reduced. Therefore, the effective packaging of the scintillator can prevent the scintillator from getting wet, improve the image resolution of the scintillation screen, and thus improve the performance of the digital X-ray flat panel detector. imaging performance

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Embodiment Construction

[0011] 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.

[0012] see figure 1 , the embodiment of the present invention includes:

[0013] A digital X-ray flat panel detector, comprising: a scintillation screen 1 and an amorphous silicon sensor array 2 closely attached to the scintillation screen 1, the scintillation screen 1 comprising: a substrate 10, a substrate attached to the upper surface of the substrate 10 A reflective layer 11, a scintillator layer 12 deposited on the reflective layer 11, a waterproof film layer 13 pressed on the scintillator layer 12; the amorphous silicon sensor array 2 is located on the lower surface of the substrate 10, with It is used to convert visible light into signal ...

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Abstract

The invention discloses a digital X-ray flat panel detector comprising a scintillation screen and an amorphous silicon sensor array closely attached to the scintillation screen. The scintillation screen comprises a substrate, a reflection layer attached to the upper surface of the substrate, a scintillation layer deposited on the reflection layer and a waterproof thin film layer laminated on the scintillation layer, wherein the scintillation layer is an acicular-structure cesium iodide crystal array, and the thickness of the scintillation layer is 800-1000 [mu]m. The amorphous silicon sensor array is arranged on the lower surface of the substrate. With the above method, the digital X-ray flat panel detector adopts the high-resolution cesium iodide scintillation screen, and has good imaging performance.

Description

technical field [0001] The invention relates to the technical field of X-ray imaging, in particular to a digital X-ray flat panel detector. Background technique [0002] The imaging performance of the digital X-ray flat panel detector mainly depends on the image resolution of the scintillation screen. Now the scintillator in the scintillation screen generally uses cesium iodide crystal, but the cesium iodide material is a hygroscopic material. When it absorbs the When moisture deliquesces, it will affect the characteristics of the scintillator, especially the image resolution will be greatly reduced. Therefore, the effective packaging of the scintillator can prevent the scintillator from being damp, and improve the image resolution of the scintillation screen, thereby improving the performance of the digital X-ray flat panel detector. imaging performance. Contents of the invention [0003] The technical problem mainly solved by the invention is to provide a digital X-...

Claims

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Application Information

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IPC IPC(8): H01L27/146H01L31/0232G21K4/00
Inventor 范波
Owner 江苏龙信电子科技有限公司
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