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

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...

AI Technical Summary

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

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