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Design method for optical path structure with nuclear radiation-resistant function
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A technology for structural design and anti-nuclear radiation, applied in the field of optical path structure design with anti-nuclear radiation function, can solve the problems of inability to meet the long-term video monitoring requirements of nuclear-related facilities and equipment, high cost, and unstable protection effect.
Inactive Publication Date: 2013-12-25
赵小鹏
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Problems solved by technology
The traditional anti-nuclear radiation method for camera monitoring equipment is to use the anti-radiation reinforcement of the charge-coupled device; this method involves the processing of precision electronic components, the conditions are harsh, the cost is high, and the protection effect is unstable, which cannot meet the requirements of nuclear-related applications. Long-term video surveillance requirements for facilities and equipment
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Embodiment 1
[0093] Embodiment 1, its structural representation is as figure 1 shown.
[0094] A method for designing an optical path structure with anti-nuclear radiation function, characterized in that: the specific steps are as follows:
[0095] Step 1, determining the overall size of the electronic camera, the light source, and the radiation resistance limit value of the charge-coupled device;
[0096] Step 2. Determine the material and thickness of the shielding layer: the material of the shielding layer is tungsten-nickel alloy or a composite method of tungsten-nickel alloy and polyethylene; wherein, the composite method of the tungsten-nickel alloy and polyethylene is specifically that the shielding layer of tungsten-nickel alloy is in the The inner layer, while the polyethylene layer is the outer layer; the shielding layer thickness is calculated by any one of the following three methods:
[0097] (1), attenuation multiple method:
[0098] K = ...
Embodiment 2
[0111] Embodiment 2, its structural representation is as figure 2 shown.
[0112] The difference between Embodiment 2 and Embodiment 1 is that the light source 2 and the electronic camera 1 are respectively arranged on the upper and lower sides close to the middle shielding frame 63; Layer 4 and polyethylene composite shielding layer 5, wherein the electronic camera and the back of the light source refer to the side facing the radiation source.
Embodiment 3
[0113] Embodiment 3, its structural representation is as image 3 shown.
[0114] A method for designing an optical path structure with anti-nuclear radiation function, characterized in that: the specific steps are as follows:
[0115] Step 1, determining the overall size of the electronic camera, the light source, and the radiation resistance limit value of the charge-coupled device;
[0116] Step 2. Determine the material and thickness of the shielding layer: the material of the shielding layer is tungsten-nickel alloy or a composite method of tungsten-nickel alloy and polyethylene; wherein, the composite method of the tungsten-nickel alloy and polyethylene is specifically that the shielding layer of tungsten-nickel alloy is in the The inner layer, while the polyethylene layer is the outer layer; the shielding layer thickness is calculated by any one of the following three methods:
[0117] (1), attenuation multiple method:
[0118] K = ...
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Abstract
The invention relates to a design method for optical path structure with a nuclear radiation-resistant function, which comprises the following steps of: a step 1 of determining the overall dimensions of a electronic camera and a light source and the radiation-resistant limit value of a charge-coupled device; a step 2 of determining the material and the thickness of a shielding layer, wherein the material of the shielding layer is made of tungsten-nickel alloy or a tungsten-nickel alloy and polyethylene composite; a step 3 of determining the shape of a shielding frame for fixing an optical path structure according to the overall dimension of an electronic pickup probe and installing a reflecting surface of a mirror plane; a step 4 of respectively installing the electron cameras and the light sources in the sides of an upper shielding space and a lower shielding space, which are close to openings, and installing a photoresistor outside the shielding frame; a step 5 of arranging the shielding layer inside the shielding frame; and a step 6 of installing a power supply and a signal output end. The optical path structure design method has a ingenious structure, wide adaptation brightness range and good application effect and is suitable for carrying out monitoring and recording on a target body with the strong nuclear radiation characteristic before and after an accident.
Description
technical field [0001] The invention relates to a method for designing an optical path structure with anti-nuclear radiation. In the case of irradiation by nuclear radiation sources, the camera monitoring instruments exposed to the radiation will be damaged due to the ionizing radiation effect and displacement radiation effect of components, resulting in severe deformation of video signals or no signal, unable to work normally, and subsequent The device is permanently damaged. The invention relates to a design method for how a camera monitoring instrument normally carries out video image monitoring under the protection of shielding materials, and belongs to the technical field of "nuclear science and technology". Background technique [0002] Nuclear radiation is the flow of microscopic particles released during the transformation of atomic nuclei from one structure or one energy state to another structure or another energy state. Nuclear radiation is composed of γ-rays, α...
Claims
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Application Information
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