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Portable radioactive ray irradiation device

A ray irradiation and irradiation device technology, applied in the field of portable ray irradiation devices, can solve problems such as reducing reference radiation scattered radiation, and achieve the effects of reducing scattered radiation, expanding space, and reducing occupational exposure doses

Inactive Publication Date: 2015-02-11
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This invention is designed based on the detection problem of the fixed radiation meter, but it still fails to effectively solve the problem of reducing the scattered radiation in the reference radiation

Method used

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  • Portable radioactive ray irradiation device
  • Portable radioactive ray irradiation device
  • Portable radioactive ray irradiation device

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] refer to figure 1 As shown, it is a structural principle diagram of Embodiment 1 of the portable radiation irradiation device of the present invention, such as figure 1 As shown in , the portable radiation exposure device includes a shielding body 8, a radiation source 4 placed in the shielding body 8, a radiation hole 10 opened on one side of the shielding body 8, and a radiation hole 10 arranged in the radiation hole 10 for extracting radiation. Collimator 2 and a scattering cavity 5. Wherein, the shielding body 8 has a good shielding effect, and is used to shield the radiation leaked from the radioactive source 4 to prevent excessive diffusion to the outside world, and the collimator 2 is used to constrain the shape and size of the radiation beam, so The scattering chamber 5 is arranged in the shielding body 8 and communicated with ...

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Abstract

The invention discloses a portable radioactive ray irradiation device, which comprises a shielding body, a radioactive source, a radioactive hole, a collimator, a scattering cavity and a radioactive source support frame, wherein the radioactive source is arranged in the shielding body, the radioactive hole is formed in one side of the shielding body, the collimator is arranged in the radioactive hole and is used for leading out radioactive rays, the scattering cavity is arranged in the shielding body and is used for reducing the self scattered radiation of the irradiation device, the radioactive source support frame is arranged in a through hole formed in the shielding body, the radiation source support frame adopts the liftable design, the radioactive source is positioned in the center position of the scattering cavity during the irradiation, the radioactive rays generated by the radioactive source pass through the collimator and a tungsten alloy collimating diaphragm arranged in the collimator to be subjected to collimating shaping, and then forms reference radiation to be used for the in-site calibration work of a fixed environment radiation monitoring instrument, and through the scattering cavity and the tungsten alloy collimating diaphragm, the scattered radiation in the reference radiation and the occupational exposure dosage of operators are reduced.

Description

technical field [0001] The invention relates to an ionizing radiation metering device, in particular to a portable ray irradiation device. Background technique [0002] With the rapid growth of my country's national economy, it is necessary to build a large number of nuclear facilities (such as: nuclear power plant reactors, research nuclear reactors and experimental fast reactors, etc.) to meet the needs of energy development and utilization, scientific research and so on. In order to ensure the safety of radioactive workers, surrounding residents and the environment, relevant laws stipulate that radiation monitoring must be carried out in and around nuclear facilities. Fixed environmental radiation monitoring instruments are one of the important equipment for radiation monitoring of nuclear facilities. It is very useful data to evaluate the current situation and development trend of environmental radiation pollution. [0003] Most of the nuclear facilities are equipped wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T7/00
Inventor 高飞倪宁刘金宏宋明哲侯金兵
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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