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A dose estimation method and system based on maximum food consumption of residents

A consumption and food technology, applied in dosimeters, measuring devices, radiation measurement, etc., can solve the problems of large total maximum food consumption, detachment, and unreasonable calculation methods, so as to improve the accuracy of environmental assessment, residents Precise dose

Active Publication Date: 2019-05-10
CHINA INST FOR RADIATION PROTECTION
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This calculation method is unreasonable, resulting in a large total amount of maximum food consumption, which is separated from the actual consumption data of residents, resulting in a large dose estimate

Method used

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  • A dose estimation method and system based on maximum food consumption of residents
  • A dose estimation method and system based on maximum food consumption of residents
  • A dose estimation method and system based on maximum food consumption of residents

Examples

Experimental program
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Embodiment 1

[0045] Conduct a survey on the diet of residents within a 5km radius of a nuclear power plant, and issue a recipe questionnaire. Food consumption varieties are divided into seven groups: grain crops, vegetables, meat, aquatic products, milk and its products, eggs, and fruits. Vegetables include leaves, roots, fruits and aquatic products; meat consumption includes pork, mutton, beef and poultry; aquatic product consumption includes fish, crustaceans, molluscs and algae. Investigate the weight of various foods eaten by residents in a week, and calculate the annual consumption.

[0046] The age composition of residents is divided into three groups according to different age groups: children group (0-7 years old), adolescent group (7-17 years old) and adult group (>17 years old).

[0047] Collect survey data and use percentiles for statistical calculations. A percentile is a numerical value at a certain percentile position in a set of data arranged in a certain order, expressed ...

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Abstract

The invention discloses a dose estimation method and system based on maximum food consumption of residents. The method comprises the following steps: S1) carrying out diet survey on the residents within a preset radius range of a nuclear power station to obtain weekly consumption for various foods of the residents, and calculating annual consumption for various foods of the residents; S2) rankingthe annual food consumption of individuals in an ascending order, then, taking the annual food consumption of a person ranked in the 90% percentile, and reallocating the annual food consumption of theindividuals according to share of average consumption of each kind of food to obtain annual maximum consumption of each kind of food; and S3) substituting the annual maximum consumption of each kindof food into an internal irradiation dose calculation formula to obtain internal irradiation dose of each resident, and calculating the total dose of the nuclear power plant to the residents accordingto the internal irradiation dose. The provided method and system calculate the maximum food consumption, consistent with the actual situation, of the residents by using a percentile method, thereby making the calculated resident dose more accurate.

Description

technical field [0001] The invention relates to the field of dose estimation, in particular to a dose estimation method and system based on the maximum consumption of residents' food. Background technique [0002] During the operation of nuclear facilities, radionuclides may be released into the environment in the form of particles or gases, and settle on the surfaces of crops, plants, etc. The ingestion route is the main component of the dose of residents. [0003] The radioactive effluent released into the atmosphere through the gaseous route will cause radiation exposure to the public during the process of atmospheric dispersion, and the following exposure routes should be considered when estimating the radiation dose to the surrounding public: External exposure; (2) External exposure caused by radioactive substances deposited on the ground; (3) Internal exposure caused by eating radioactively contaminated food, vegetables, fruits, etc.; (4) Ingesting radioactively contam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/02G01T1/167
Inventor 韩宝华郭书扬张超曹少飞王慧娟张晟马炳辉王学文
Owner CHINA INST FOR RADIATION PROTECTION
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