A Human Dose Simulation Method with Variable Pose in Dynamic Environment

A dynamic environment and attitude technology, applied in medical informatics, medical simulation, computer-aided medical procedures, etc., can solve problems such as insufficient precision, inconvenient operation, complex design, etc., and achieve flexible modeling methods, simple calculations, and reliable results Effect

CN107315907BActive Publication Date: 2020-06-16HARBIN ENG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-06-16

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Abstract

The invention provides a variable posture-based human body dose simulation method for a dynamic environment. The method comprises the steps of building a virtual human three-dimensional model, which comprises human body tissues and organs; describing the tissues and the organs by adopting monitoring points uniformly distributed in the tissue and organ model, and binding the monitoring points with the human body organs and tissues; establishing a skeleton animation of posture actions of personnel in operation, binding the skeleton animation with the organs, and performing position change on the monitoring points along with the skeleton animation of an operation process; calculating absorption doses of the human body tissues or organs; calculating a human body effective dose under a calculation time step length; and in the operation process, accumulating the absorption doses of the tissues or organs under all discrete time step lengths and the human body effective dose to obtain accepted dose results of the personnel in the whole operation process. According to the method, human body radiation dose calculation simulation is performed by considering human body posture change and dynamic radiation environment conditions at the same time; a modeling method is more flexible and efficient; the calculation is simpler and more convenient; and the results are more reliable.
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Description

technical field

[0001] The invention relates to a human body radiation dose simulation method. Specifically, it is a human body dose simulation method with a variable attitude in a dynamic environment, which evaluates the human body dose during the personnel operation process in a dynamic nuclear facility radiation environment. Background technique

[0002] Nuclear radiation directly damages the personal safety of workers. Accurate assessment of human dose is an important link to ensure the safety of personnel. Especially in the case of nuclear facility maintenance, emergency and decommissioning, personnel are in a radiation environment. The earth has increased the difficulty of personnel operations. Before the staff perform their tasks, they must conduct personnel dose analysis under the principle of ALARA (as lowas reasonably achievable). Therefore, establishing a flexible and effective personal dose calculation method to achieve accurate assessment of personnel dose is ...

Examples

Embodiment Construction

[0036] The present invention will be further described below in conjunction with accompanying drawing:

[0037] The software of the present invention is based on Visual Studio 2010, adopts C++ to write, and its main function is:.

[0038] After connecting the system, input the radioactive source and shielding environment parameters, click the start dose assessment button, and then use the mouse and keyboard to control the virtual human to perform the operation, and the curves of the absorbed dose rate and operation time of various tissues and organs of the human body will be drawn automatically. At the same time, the absorbed dose of each tissue and organ and the effective dose of the human body are displayed in the dialog box.

[0039] The invention can carry out the calculation and simulation of the human body dose on the operation process of the personnel in the radiation environment of the nuclear facility. The calculation process is:

[0040] (1) Establish a three-dimen...