an irradiation device

An irradiation device and irradiation technology are applied in the field of nuclear radiation utilization to achieve the effects of simple operation, low cost and easy handling

Active Publication Date: 2022-02-11
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned technical problems of high radiation shielding cost and difficult operation of the existing gamma irradiation device; the present invention provides an irradiation device which solves the technical problem of low-cost radiation shielding safety, and has the advantages of safety, reliability, simple operation and low cost. characteristics, and has strong scientific research and engineering practicality

Method used

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Embodiment 1

[0038] An irradiation device, comprising a first water tank 1, a second water tank 2 is provided in the middle of the first water tank 1; between the side walls of the first water tank 1 and the second water tank 2, the first water tank 1 and the Cavities for filling liquid shielding materials are left between the bottoms of the second water tanks 2 ; cavities for filling liquid shielding materials and placing irradiation chambers 3 and radiation sources 4 are provided in the second water tanks 2 .

[0039] Specifically, the liquid shielding material is water. Compared with other liquid shielding materials, on the one hand, it is low in cost, easy to obtain, clean and environmentally friendly, and on the other hand, water has high specific heat capacity and good stability, which can ensure the safety of irradiation operation. .

[0040] Wherein, the irradiation chamber 3 is a double-layer vacuum structure; according to different irradiation forms, the irradiation chamber 3 can...

Embodiment 2

[0045] Based on Embodiment 1, the second water tank 2 is provided with a bracket 5 and a radioactive source frame 6 for placing the radiation source 4, the bracket 5 is arranged along the height direction of the second water tank 2, and the bracket 5 is provided with a lift mechanism, and the lifting mechanism is used to drive the radiation source rack 6 to move along the height direction of the bracket 5, thereby realizing the continuous movement of the radiation source and generating a continuously adjustable radiation field. Therefore, the dose rate of the irradiation field (like the reactor power change) can be adjusted online within a range to meet the requirements of different test conditions and the practical requirements of different product technical verification parameters.

[0046] As a specific embodiment of the lifting mechanism, the lifting mechanism includes a screw nut driving assembly, and the screw nut driving assembly is driven by the motor 8 to rotate the nu...

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Abstract

The present invention relates to the technical field of nuclear radiation utilization, in particular to an irradiation device. The adopted technical solution is: an irradiation device including a first water tank, a second water tank is arranged in the middle of the first water tank; There are cavities for filling liquid shielding materials between the side walls of the water tank and the second water tank, and between the bottom of the first water tank and the second water tank; The cavity of the irradiation chamber and the radiation source. The shielding material of the present invention is liquid, low in cost, simple in construction operation, easy to handle, and will not affect the environment of the construction site; the radiation source will not be directly exposed to the air due to the leakage of the shielding material in the first water tank; It has the characteristics of safety, reliability, simple operation and low cost, and has strong scientific research experimentation and engineering practicability.

Description

technical field [0001] The invention relates to the technical field of nuclear radiation utilization, in particular to an irradiation device. Background technique [0002] With the development of my country's economy and society, gamma irradiation is widely used in many radioactive scientific research, experiment and production sites. Gamma rays, also known as gamma particle streams, are rays released when nuclear energy level transitions de-excite, and have strong penetrating power. This kind of strong rays has many uses in industry, such as medical imaging, radiotherapy , tomographic scanning and material exposure testing. [0003] In the engineering application of gamma radiation, it is because gamma rays are extremely penetrating and belong to ionizing radiation. When the human body is irradiated with gamma rays exceeding the limit, the gamma rays enter the human body and interact with cells in the body. Ionization occurs, and the ions generated by ionization can corro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21K5/00G21K5/08G21K5/10G21F1/02
CPCG21K5/00G21K5/08G21K5/10G21F1/023
Inventor 王育坤曹骐伍晓勇陈云明何潘庆吴伟刘吉珍孙胜李兵李成业杨雨
Owner NUCLEAR POWER INSTITUTE OF CHINA
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