Camera shielding device and method under strong irradiation field

Abstract

The invention discloses a camera shielding device under a strong irradiation field. The device includes a cylinder shell, a side lead shield installed in the cylinder shell, a lead glass shell installed on the top end of the cylinder shell, a lead glass window fixedly installed in the lead glass shell, a rear cover and an air inlet tube passing through the rear cover and connected to the rear cover. A camera is installed in the lead shield and performs observation through the lead glass window, so that the service life of the camera working under a strong irradiation field can be prolonged. Acamera shielding method under the strong irradiation field is also disclosed. The parameter dimensions of the device under the strong irradiation field can be set by analyzing irradiation environmentsand integrating camera structure types; the camera can be put in after the device under the strong irradiation field is machined; and the method is simple in operation, and the frequent replacing ofthe camera is not needed.

Description

technical field [0001] The invention relates to the technical field of image acquisition in irradiation fields, and more precisely relates to a camera shielding device and method in strong irradiation fields. Background technique [0002] In today's industrial production, the application of high-energy and high-intensity radiation rays is widely involved, such as radiation crosslinking of materials, industrial CT, etc. In the above-mentioned industrial production process, it is generally necessary to observe the material to be processed or the object to be imaged in real time, so as to ensure that the radiation process is carried out safely and smoothly. In order to realize real-time observation, surveillance cameras need to be arranged, but because the ray intensity and energy of high-energy radiation are very high in the above-mentioned industrial production, the optical sensitive device CCD in the camera in this strong irradiation environment will be greatly affected. Ir...

AI Technical Summary

Problems solved by technology

In order to realize real-time observation, surveillance cameras need to be arranged, but because the ray intensity and energy of high-energy radiation are very high in the above-mentioned industrial production, the optical sensitive device CCD in the camera in this strong irradiation environment will be greatly affected. Irradiation damage, after a period of use, the camera will appear "flower screen", and the camera needs to be replaced, which seriously affects the service life. Frequent replacement of the camera will also affect the production efficiency. If the irradiation space is more complicated, the replacement process will be correspondingly complicated , which further reduces work efficiency, affects production and increases maintenance costs

At the same time, high-energy radiation will ionize the air to produce oxygen free radicals with strong corrosive ability, which will easily corrode the materials that make up the camera, such as steel and plastic, and cause damage to the camera

In order to solve the above technical problems, the existing solutions are mainly to formulate corresponding shielding schemes for specific irradiation space environments. This method requires a corresponding assessment of each irradiation situation, which requires a large workload and high technical standards. High cost, not conducive to widespread popularization

Due to the lack of a universal shielding solution in this field, shielding measures are generally not adopted, and the camera is replaced after a problem occurs. Moreover, for some small monitoring and observation areas, it is very inconvenient to replace the camera and disassemble the relevant parts of the equipment.

Even if shielding measures are adopted, some basic shielding methods are adopted after rough estimation, the shielding effect is not good, and it is time-consuming and labor-intensive

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