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X-ray inspecting probe for large container and its preparing process

A technology for detecting probes and preparation processes, applied in measuring devices, material analysis using wave/particle radiation, instruments, etc., can solve problems such as difficulty in adjusting mass-to-mass performance systems, missed or false detections, and damage to photoelectric devices

Inactive Publication Date: 2003-12-03
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the X-ray detection devices used now are directly completed by adding an X-ray conversion screen to the front of the photodetector. Because X-rays have strong penetrating ability and high photon energy, and the conversion screen is installed later. , due to the shedding of powder or the penetration of X-rays, the photoelectric device will be damaged, resulting in missed detection or false detection
In addition, since each measuring device is a separate component, the difference in performance between masses will cause great difficulties in system adjustment.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0011] The first embodiment of the present invention is: 1.1 Production of block material with X-ray conversion screen:

[0012] First, use the method of ion membrane filtration to purify the polymethyl methacrylate (pmmA) monomer to filter out the polymerization inhibitor and other impurities in the monomer to achieve a purity of 99.99%, and then mix it in a volume ratio of 0.5-1% X-ray conversion powder, put the mixed doped monomer into the bottle, and secondly, use the low-temperature polymerization method to set the temperature of the water bath at 55 degrees, due to the difference between pmmA monomer and X-ray conversion powder The specific gravities are 0.93 and 3 respectively, and their specific gravities are quite different. During the polymerization process, a uniformly distributed X-ray conversion screen is formed. This conversion screen is formed by precipitation, so it is relatively uniform, and there is no separate layer, which will not cause The X-ray conversion pow...

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PUM

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Abstract

An X-ray probe for inspecting large container is prepared from optical plastics through low-temp polymerizing to make X-ray conversion screen material, high-temp softening, drawing to obtain cone, connecting it with optical fibre by mechanical clamp or fusing, and making inspecting system. Its advantages include small size, light weight, high power to resist electromagnetic interference and simple system.

Description

1. Technical Field [0001] The invention relates to an X-ray inspection deep head, in particular to an X-ray inspection probe for inspection of large containers and a preparation process thereof. 2. Background technology [0002] Most of the X-ray detection devices that are still in use are directly completed by using the front end of the photodetector and the X-ray conversion screen. Because X-rays have strong penetrating ability and large photon energy, the conversion screen is installed afterwards. , Due to powder shedding or X-ray penetration will cause damage to the optoelectronic devices, resulting in leakage or false detection. In addition, since each measuring device is a separate component, the difference in performance between masses will cause great difficulty in system adjustment. 3. Summary of the invention [0003] The purpose of the present invention is to overcome the above-mentioned defects of the prior art, and propose an X-ray inspection probe for inspection of...

Claims

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Application Information

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IPC IPC(8): G01N23/083
Inventor 姚胜利高风
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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