A Method for Estimating Exposure Dose of Decommissioned Humans in Nuclear Facilities

Abstract

The invention discloses a method for assessing human body exposure dose for decommissioned nuclear facilities, and specifically relates to a simulation method based on a point-core integral method, which simplifies nuclear decommissioned staff into a stylized model and dynamically calculates human body exposure dose. The invention includes: adopting a stylized model to construct a virtual human model; converting the key tissues of the stylized model into a series of detection points; calculating the equivalent dose of the key tissue detection points by using a point kernel integral method; Dose, to realize the dose assessment of workers in the decommissioning process. The invention includes three modules of decommissioning environment modeling, stylized human body model modeling, and human exposure dose calculation, and realizes dynamic calculation of exposure dose of workers wearing nuclear radiation protective clothing during the decommissioning process of nuclear facilities.

Description

technical field

[0001] The invention relates to a method for evaluating the radiation dose of a nuclear facility decommissioned human body, and belongs to the field of nuclear decommissioning simulation. Background technique

[0002] Decommissioning activities at nuclear facilities operate in a dynamically changing and highly radioactive environment. In order to ensure the safety of workers in decommissioning activities and make their exposure dose meet the principle of optimization of radiation protection, it is necessary to analyze and evaluate the exposure dose of workers before decommissioning, and plan the decommissioning work of workers according to the evaluation value.

[0003] At present, the conventional human exposure dose assessment method is to establish a virtual human body model and use the Monte Carlo method to calculate the exposure dose to the human body model. Computable human body models fall into three categories: stylized models, voxel models, and surf...

Examples

Embodiment Construction

[0040] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0041] The invention proposes a simulation method for calculating the virtual human effective dose when the decommissioning activity is terminated by adopting the point kernel integral method to calculate the dose equivalent rate of the key organs of the human body model and calculating the virtual human effective dose.

[0042] The invention adopts 3dsMax modeling software, Ogre engine and C++ language programming, and the main functions are: constructing a virtual human model by using a stylized model, converting the key organization of the stylized model into a series of detection points, and calculating the key points by using the point kernel integral method. The equivalent dose of the tissue detection point is calculated, and the effective dose of the virtual human is calculated when the decommissioning activity is terminated. The whole ...

technical field

[0001] The invention relates to a method for evaluating the radiation dose of a nuclear facility decommissioned human body, and belongs to the field of nuclear decommissioning simulation. Background technique

[0002] Decommissioning activities at nuclear facilities operate in a dynamically changing and highly radioactive environment. In order to ensure the safety of workers in decommissioning activities and make their exposure dose meet the principle of optimization of radiation protection, it is necessary to analyze and evaluate the exposure dose of workers before decommissioning, and plan the decommissioning work of workers according to the evaluation value.

[0003] At present, the conventional human exposure dose assessment method is to establish a virtual human body model and use the Monte Carlo method to calculate the exposure dose to the human body model. Computable human body models fall into three categories: stylized models, voxel models, and surf...

Examples

Embodiment Construction

[0040] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0041] The invention proposes a simulation method for calculating the virtual human effective dose when the decommissioning activity is terminated by adopting the point kernel integral method to calculate the dose equivalent rate of the key organs of the human body model and calculating the virtual human effective dose.

[0042] The invention adopts 3dsMax modeling software, Ogre engine and C++ language programming, and the main functions are: constructing a virtual human model by using a stylized model, converting the key organization of the stylized model into a series of detection points, and calculating the key points by using the point kernel integral method. The equivalent dose of the tissue detection point is calculated, and the effective dose of the virtual human is calculated when the decommissioning activity is terminated. The whole ...

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