[en] NRC opinion was discussed for simplification of existing emergency planning requirements in advanced nuclear power plant designs. Recommendations for policy establishment, emergency preparedness and response, and technical criteria were developed for simplification of emergency planning in China. (authors)

[en] Based on considerations for individual dose constraints in planned exposures, the applications of individual dose constraints in the public exposure and occupational exposure were discussed. Constraints for members of the public in planned exposure situations would typically be set and approved by the national regulatory authorities. For occupational exposures, it is more appropriate to set individual dose constraints by nuclear energy organizations than by the national regulatory authorities. (authors)

[en] Accurate, reasonable dose assessment is an important means to achieve the goal of radiation safety of nuclear power plants. This article describes the basic method and discusses some technical is- sues on exposed radiation dose assessment to nuclear power plant workers. (authors)

[en] For purpose of evaluating radiation environmental impact due to long-term release of radionuclides from the high-level geological waste disposal repository, a biosphere assessment model based on BIOMASS methodology has been developed by utilizing Ecolego, a general compartment model tool. Both "1"3"5Cs and "7"9Se are used as examples. Probabilistic analyses of the system considers all parameters, as well as physical and societal parameters independently, allows quantification of their mutual impact on overall uncertainty. Biosphere dose conversion factors (DCF) are computed to illustrate the combined probabilistic and deterministic approach. According to the results of sensitive analysis, correlations of the most parameters are positive except the precipitation rate which has an inverse relationship with the DCF. (authors)

[en] The paper introduced the U.S. Nuclear Regulatory Commission(NRC) revision plans for the basis of design objectives of light water reactors. Consequently, in considering changes of public exposure pathways for inland nuclear plants, it is proposed that design objectives of nuclear power plants in China should be defined. Furthermore, in applying current radiation protection standards, these concerns should be raised: (1) 2007 ICRP Recommendations(ICRP Publication 103) have now evolved from a process-based approach towards practices and interventions to an approach based on the characteristics of three types of radiation exposure situations i.e., planned, emergency, and existing exposure situations. (2) After 2007 ICRP Recommendations updated the radiation and tissue weighting factors in quantities equivalent and effective dose, the current dose conversion factors applied in the dose assessment should be updated. (authors)

[en] An overview was provided of some important principles of ICRP and IAEA for the potential exposure and its protection in the radiation protection and safety. A systematic description was performed of the assessment method of potential exposure, and its acceptance criteria and risk control in three typical planned exposure situations. Particularly for the potential exposure in the design of nuclear power plants, not only the individual health risk but also the social risk should be considered. (authors)

[en] Airborne radionuclides released from nuclear power plant after accidents can be deposited on the ground. Ground exposures can become an important part of offsite public exposure. The projected public doses of ⁶⁰Co, ¹³⁷Cs and ⁹⁰Sr, resulted from ground exposures are evaluated in this paper, including external exposure from ground shine and inhalation of resuspended material with radionuclides physical removal and resuspension processes considered. (authors)

[en] An overview was provided of some principles and requirements of ICRP and IAEA for the exposure control of emergency workers. Several key issues were summarized on how to control exposure of workers in emergency exposure situations. An exemplary description was performed on the dose control of emergency workers in a nuclear power plant. (authors)

[en] The article describes "1"4C production and release management, the method to reduce the production and release of "1"4C, and "1"4C extraction, purification and analysis methods for pressurized water reactor (PWR) and heavy water reactor (HWR) nuclear power plants. So the paper provides basic information for monitoring and control of "1"4C in gaseous and liquid effluents for Chinese nuclear power plants. In addition, according to the current situation of "1"4C emission and monitoring in Chinese nuclear power plants, some suggestions are put forward (authors)

[en] This paper introduced the principle for regulatory control of liquid radioactive effluents. For liquid radioactive effluent release from an inland nuclear power plant, the approach to concentration limitation, the dose basis and the calculation model for derived concentration limits were also proposed. (authors)