Method and system for simulating radiation dose field of nuclear power station

Abstract

The invention discloses a method and system for simulating a radiation dose field of a nuclear power station. The method comprises the following steps of obtaining three-dimensional model data in a nuclear power station area and radioactive source term data in the area; generating three-dimensional dose field data according to the three-dimensional model data and the radioactive source term data; receiving an actual effective dose rate measured by a radiation dose measurement device; correcting and generating simulated three-dimensional dose field data according to the actual effective dose rate and the three-dimensional dose field data; and simulating and generating the radiation dose field according to the simulated three-dimensional dose field data. According to the method and the system for simulating the radiation dose field of the nuclear power station, the radiation dose in a radiation area can be relatively accurately simulated only through limited measured data, distribution of the effective dose rate in the area can be provided and the level of the tolerated radiation dose of an operator is reduced.

Description

technical field [0001] The invention belongs to the technical field of nuclear power, and more specifically, the invention relates to a method and system for simulating the radiation dose field of a nuclear power plant. Background technique [0002] During the operation of nuclear power plants, the radiation dose of nuclear power plant operators needs to be strictly controlled, which will directly affect the health of the staff in the nuclear power plant. In the national standard GB18871-2002, the annual dose limit for operators in nuclear power plants is stipulated. During the operation of nuclear power plants, the annual dose suffered by any operator must not exceed the above limit. [0003] In one prior art, during the actual operation of a nuclear power plant, the effective dose rate is usually used to characterize the level of radioactivity in the radiation area of ​​the nuclear power plant, and in the radiation area of ​​the nuclear power plant, the effective dose rate...

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Problems solved by technology

For this reason, for the personal safety of operators, operators who enter nuclear islands and other areas usually need to carry radiation dose monitoring equipment with them to record the radiation dose received by them. After the operation is over, the current measurement results are sent back to the monitoring and Dose management system analysis, this method can only obtain the effective dose rate level of the point through the effective dose rate measurement value of a single measurement point in the area, not only it is difficult to determine the radiation dose in the nuclear power plant area, but also it is difficult to ensure the personal safety of operators

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