Airborne food chain radioactive activity estimation method applied to nuclear accident consequence assessment

A radioactivity, nuclear accident technology, used in radiation measurement, X/γ/cosmic radiation measurement, measurement devices, etc., can solve problems such as loss of radioactive materials

Pending Publication Date: 2017-12-29
CHINA INST FOR RADIATION PROTECTION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] When a nuclear facility or other nuclear facility seriously deviates from normal operating conditions or an accident occurs, the release of radioactive substances may or has lost proper control and reached an unacceptable level, which will cause serious consequences

Method used

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  • Airborne food chain radioactive activity estimation method applied to nuclear accident consequence assessment
  • Airborne food chain radioactive activity estimation method applied to nuclear accident consequence assessment
  • Airborne food chain radioactive activity estimation method applied to nuclear accident consequence assessment

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Embodiment Construction

[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0053] figure 1 It shows a flow chart of a method for estimating the radioactive activity of the airborne route food chain in the assessment of the consequences of a nuclear accident provided in the embodiment of the present invention, figure 2 A schematic diagram showing the transfer of radionuclides from release to ingestion by the human body, figure 1 The estimation method shown in mainly includes the following steps:

[0054] Step S100: Determine the scope of the evaluation area centered on the nuclear facility;

[0055] Step S200: For the area within the evaluation area, calculate the amount of nuclide deposition caused by the pollutant plume released during the nuclear facility accident;

[0056] For a certain area within the scope of the assessment area, the amount of nuclide deposition caused by the passing of pollutants r...

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Abstract

The present invention discloses an airborne food chain radioactive activity estimation method applied to nuclear accident consequence assessment and belongs to the nuclear facility accident consequence assessment technical field. The estimation method includes the following steps that: an assessment area range is determined with a nuclear facility adopted as center; the nuclide deposition quantity of a region in the assessment area range caused by the passage of pollutant smoke plume released during a nuclear facility accident is calculated; the concentration of nuclides in the edible parts of plants during the harvesting time of the plants and the concentration of nuclides in animal products are calculated according to the nuclide deposition quantity; and the intake rate of the nuclides of a human body which are introduced into the human body through an intake means is calculated according to the concentration of the nuclides in the edible parts of the plants during the harvesting time of the plants and the concentration of the nuclides in the animal products. With the method adopted, the intake rate of the nuclides of the human body which can be adopted as reference can be provided, and the information of potential influence on the human body caused by radiation can be provided for decision makers in an accident of the release of radioactive substances to the atmosphere.

Description

technical field [0001] The invention relates to the technical field of nuclear facility accident consequence evaluation, in particular to a method for estimating the radioactive activity of an airborne path food chain in nuclear facility accident off-site consequence evaluation. Background technique [0002] When nuclear facilities or other nuclear facilities seriously deviate from normal operating conditions or accidents occur, the release of radioactive substances may or has lost proper control and reached an unacceptable level, which will cause serious consequences. Therefore, it is of great strategic significance to prevent, control and analyze the hazards of nuclear facility accidents. [0003] Nuclear Facility Accident Consequence Evaluation System is an evaluation system that integrates regional meteorological data, radioactive pollutant migration mode and consequence evaluation, and is used to estimate, evaluate and display accident consequences within a specific ran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/167
CPCG01T1/167
Inventor 姚仁太黄莎郝宏伟李继祥黄杰张俊芳吕明华徐向军胡继民张芳高卫华韩旻晨杨彪
Owner CHINA INST FOR RADIATION PROTECTION
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