Estimation method of gaseous radionuclide-induced radiation doses and protective measures and suggestions

Abstract

The invention discloses an estimation method of gaseous radionuclide-induced radiation doses and protective measures and suggestions and belongs to the nuclear facility accident off-site assessment technical field. The method is a calculation method for calculating potential doses and expected doses to which people in each grid in each period of the early stage of an accident of a region are exposed, as well as avertable doses and residual doses of intervention actions such as taking iodine, concealment and withdraw, under a condition that gaseous radioactive substances are released unevenly at any time span in nuclear accident consequence assessment. With the method of the invention adopted, the calculation of doses to which people are exposed when passing through different paths in withdraw and relocation actions and the estimation of the concentration of key nuclides in reservoirs and milk are realized; and potential doses and expected doses to which people are exposed during different time periods, the avertable doses and residual doses of intervention actions, suggested intervention action regions, directions, administrative divisions, demographics and other information can be provided; and necessary information support can be provided for emergency decision makers.

Description

technical field [0001] The invention relates to the technical field of off-site consequence evaluation of nuclear facility accidents, in particular to a method for estimating radiation doses caused by gaseous radionuclides and protective measures in the off-site consequence evaluation of nuclear facility accidents. 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 accide...

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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