Nuclear power plant work personnel occupational exposure analysis method

Abstract

The invention relates to a nuclear power plant work personnel occupational exposure analysis method; the method can minutely divide task types and personnel post types; the method can carry out exposure dosage statistics, and simultaneously considers three factors including work ticket, personnel in-out time, and operation content causing work personnel exposures. The method comprises the following steps: recording collective dosage; carrying out radiation protection measures when the recorded collective dosage approaches or exceeds the estimated collective dosage level; optimizing the collective dosage received by people for finishing corresponding work task in the following time. The method can easily carry out statistics analysis of the dosage data, thus controlling and reducing the collective dosage in operation and maintenance periods.

Description

technical field [0001] The invention belongs to the technical field of nuclear power design, and in particular relates to a method for analyzing the occupational exposure of nuclear power plant staff. Background technique [0002] As the control quantity of optimization analysis, collective dose plays an important role in the implementation and realization of the ALARA principle of nuclear power plants in the process of radiation protection design, operation and management of nuclear power plants. Domestic operating nuclear power plants regard the collective dose of work items as an important quantity of radiation protection optimization management work, which is continuously applied and refined, adopting collective dose prediction by item, hierarchical management and ALARA coordinator inspection and tracking and constantly summing up experience Feedback and other effective measures have played an important role in reducing the radiation risk of workers. However, as the ope...

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Problems solved by technology

However, as the operating time of the power station increases, the maintenance items and types of operations will gradually increase. Simply analyzing the collective dose of the staff from the perspective of the accumulated operating time and the total number of operators is not conducive to the control of the collective dose level.

[0003] The current statistical analysis of dose only counts the results of personal dosimeters, and is not linked to work tickets. It is impossible to count the exposure received by individuals or personnel in a certain position to complete a certain task, and then take corresponding measures to effectively control

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