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

A technology of radionuclides and protective measures, applied in the field of off-site consequence assessment of nuclear facility accidents, and can solve problems such as loss of radioactive materials

Active Publication Date: 2017-12-29
CHINA INST FOR RADIATION PROTECTION
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  • Abstract
  • Description
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  • 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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  • Estimation method of gaseous radionuclide-induced radiation doses and protective measures and suggestions
  • Estimation method of gaseous radionuclide-induced radiation doses and protective measures and suggestions
  • Estimation method of gaseous radionuclide-induced radiation doses and protective measures and suggestions

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Embodiment Construction

[0152] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0153] The method for estimating the radiation dose caused by gaseous radionuclides and protective measures in the evaluation of off-site consequences of nuclear facility accidents provided by the present invention can estimate the possible risks caused by gaseous radionuclides to the environment and the public in the event of a nuclear accident Make analysis and prediction, and become a technical support tool for decision makers to determine scientific and reasonable emergency protection actions.

[0154] figure 1 It shows a flow chart of a method for estimating radiation doses caused by gaseous radionuclides and protective measures in the evaluation of off-site consequences of nuclear facility accidents provided by the present invention, and the method mainly includes the following steps:

[0155] Step 1. Carry out grid division on...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/0635G06Q50/06
Inventor 郝宏伟张俊芳吕明华姚仁太李继祥黄杰黄莎徐向军胡继民张芳高卫华杨彪韩旻晨
Owner CHINA INST FOR RADIATION PROTECTION
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