Rapid 3D radiation field evaluation is the key point of occupational dose optimization for design and operation of nuclear power plant. Based on the requirement analysis from designers and operators of nuclear power plant, three key technical issues are identified and solved through the development of the RPOS system, which are rapid calculation of 3D radiation field, reconstruction of the calculated 3D radiation field based on measured data, and occupational dose optimization based on 3D radiation field. Operational measurements of dose rate from in-service nuclear power plants are used to test the RPOS system, which shows that accurate 3D radiation field can be rapidly generated by the RPOS system and effectively used on the occupational dose optimization for on-site workers. The applications of the established rapid 3D radiation field evaluation technique on HPR1000 unit design provide evidence on its feasibility in a large scale, the improvement of radiation protection design efficiency and the enhancement of ALARA assessment and justification for nuclear power plants.

中文翻译：

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核电厂3D快速辐射场评估技术的开发与验证

快速3D辐射场评估是核电厂设计和运行中职业剂量优化的关键。基于核电厂设计者和运营者的需求分析，通过RPOS系统的开发，确定并解决了三个关键技术问题，即快速计算3D辐射场，根据测量数据重建计算的3D辐射场。 ，以及基于3D辐射场的职业剂量优化。使用在役核电站的剂量率运行测量值来测试RPOS系统，这表明RPOS系统可以快速生成准确的3D辐射场，并有效地用于现场工作人员的职业剂量优化。