A public dose evaluation method based on a probability theory in radiation environment evaluation

Abstract

The invention discloses a public dose evaluation method based on a probability theory in radiation environment evaluation. The method comprises the following steps of analyzing and determining an irradiation path, the irradiation path comprising inhaled air internal irradiation, air immersion external irradiation, surface sediment external irradiation, internal irradiation of food-in animal and plant products and dose evaluation, and selecting a representative personal annual effective dose according to the result of the dose evaluation. According to the method, in the public dose estimation process, all the public within the illuminated range are considered, a reasonable personal annual effective dose is selected as a reference dose value, the value serves as an evaluation index in radiation environment evaluation, the conservative property of the evaluation index is further enhanced, and therefore the safety of the public and the environment is guaranteed.

Description

technical field [0001] The invention relates to the technical field of public dose assessment in radiation environment assessment, in particular to a public dose assessment method based on probability theory in radiation environment assessment. The public dose is used as an important evaluation index in the radiation environment assessment. Background technique [0002] As the radiation protection system continues to change, so do its components and applications. At present, the environmental assessment of nuclear facilities is also undergoing a process of gradual strengthening and standardization, just like conventional environmental assessment. For radiation environmental quality assessment (also known as radiation environmental assessment), the current evaluation index for judging whether nuclear facilities meet the national environmental requirements is: the annual effective dose of key residents. [0003] The key population group refers to: for a given radiation sourc...

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Problems solved by technology

[0004] This identification method naturally results in a large scale of the given key population group, and the average annual food consumption per person obtained from the sampling cannot represent the food consumption of the people who are more exposed

Therefore, within the exposure range, the annual effective dose of the key resident group may be used as the evaluation index of the radiation environment assessment, which may be unconservative.

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