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High-resolution X-ray image enhancer

A high-resolution, image intensifier technology, applied in the direction of cathode ray/electron beam tube shell/container, image conversion/image magnification tube, screen tube, etc., can solve the problem of low X-ray transmittance, serious scattering, contrast Poor and other problems, to achieve the effect of improving spatial resolution, small scattering, and improving contrast

Inactive Publication Date: 2007-09-12
陕西光电子先导院科技有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to provide a high-resolution X-ray image intensifier, which solves the problems of low transmittance, poor contrast, serious scattering and high noise of X-rays in the existing X-ray image intensifier using titanium windows. question

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Embodiment Construction

[0020] The structure of the present invention is shown in Fig. 1 and Fig. 3, comprises input window 1, reflective photocathode 3 sensitive to X-ray, microchannel plate assembly, output window 9 and housing 10, wherein input window 1, output window 9 and housing 10 constitute The vacuum seal 12, the casing 10 includes a sealing ring 16, a ceramic casing 14, and an output window metal casing 15 that are axially connected in sequence, and the input window 1 is a metal window 20 fixed in the middle of the front end of the sealing ring 16, and the metal window 20 adopts Pure aluminum / pure beryllium material, the thickness is 0.3-2mm, preferably 0.5-1mm, and the effective diameter is Φ18-Φ100mm, preferably Φ25-Φ100mm. The microchannel plate assembly comprises a pressure ring 4, a microchannel plate 5 and a tray 19 axially connected in sequence; the tray 19 is fixed in the middle of the ceramic shell 14, and the pressure ring 4 is fixed at the rear end of the sealing ring 16; the micr...

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Abstract

The invention relates to a high resolution X radial image amplifier, it includes input window, photoelectricity cathode, micro channel board module, output window and shell; output window includes in turn axial connected fluorescent screen, luminous powder level and aluminum membrane; the shell includes seal ring, the ceramic shell and the output window metal shell; the output window seal fixes in the output window metal shell; the input window seal fixes in the metal window of the middle of seal ring front end; the input window material is the aluminum or beryllium metal, the material of seal ring ia the cut down alloy 4J33, the input window connect seal ring with the aluminum braze welding. This invention solved the technical problem of the existing X radial image amplifier to X radial low transmissibility, the difference contrast gradient, the serious scattering, the big noise; the invention has high transmissibility and the small scattering power to X radial, can reduced electronic dissemination time, the transit time and the space charge effect, reduced X radial image amplifier noise, enhanced the contrast gradient.

Description

technical field [0001] The invention relates to an image intensifier for an X-ray detection device. Background technique [0002] As one of the traditional non-destructive testing methods, X-ray testing is playing an increasingly important role in the field of industrial non-destructive testing. Especially with the rapid development of electronic technology, the miniaturization of packaging and the high density of assembly, and the continuous emergence of various new packaging technologies, the requirements for the quality of electronic assembly are getting higher and higher, so the inspection methods and technologies are put forward higher requirements. Automatic X-ray inspection technology (AXI) can not only detect invisible solder joints, such as BGA (Ball Grid Array Package), etc., but also perform qualitative and quantitative analysis on the detection results in order to find faults early. At the same time, due to the miniaturization of electronic products, the applic...

Claims

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Application Information

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IPC IPC(8): H01J31/50H01J29/86
Inventor 赛小锋赵宝升曹希斌王俊锋韦永林邹玮董改云
Owner 陕西光电子先导院科技有限公司
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