Table of Content

20 December 2017 Volume 37 Issue 6

  

Risk Analysis and Management Practices of Radiation Safety in Nuclear Power Construction Projects

Chen Zichong, Hu Yingqi

RADIATION PROTECTION BULLETIN. 2017, 37(6):  1-10. 

Abstract ( 45 )  

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A fault tree model, for radiation safety of nuclear flaw detection in the field of nuclear power construction projectshas been set up, by using which the relevant risk has been fully analyzed. Combined with the specific requirements of relevant laws, regulations and standardsof radiation protection in China, a set of complete control measures of radiation detection of nuclear power construction site is formulated in accordance withthe operation process flow, by reference to the practices of Bechtel, FA3 and other companies. It is aimed at eliminating the occurrence of safety incidents both through the management system and via technical means, and standardizing the radiation safety protection and management of radiofrequency detection in the construction of nuclear power projects.

A Preliminary Analysis of Emergency Preparedness for Xudabu Nuclear Power Plant

Zhang Qianru, Yao Peilin

RADIATION PROTECTION BULLETIN. 2017, 37(6):  11-16. 

Abstract ( 54 )  

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The emergency preparedness for the construction stage of Xudabu NPP is discussed, including the calculation of emergency planning zone, the construction of emergency control center, the preparationof emergency plan and the establishment of emergency organization. It focuses on the emergency work planning before the first loading, and the basic ideas forcarrying out the work.

Application of AHP Based on Expert Supporting Degree in Classification of Radiation Risk Sources in Beijing

Wang Yue, Chen Dongbing, Du Binggui, Song Zhiyan

RADIATION PROTECTION BULLETIN. 2017, 37(6):  17-21. 

Abstract ( 41 )  

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Risk identification of radiation sources is related to its inherent characteristics, radiation protection facilities and operating conditions, as well as implementation of laws and regulations. Based on the practice of radiation safety supervision, and technical procedures of daily supervision and inspection, factors that have important influence on radiation safety were generalized, summarized and refined. Combined with widely solicited peer opinions and suggestions, an evaluation index system of radiation risksources was established. The Analytic hierarchy process (AHP) based on Expert Supporting Degree was used to provide the weight of each risk evaluation index, todetermine the risk level of a radiation source unit. The study will provide thetheoretical basis for classification management of radiation risk sources, realize the dynamic classification management of radiation sources, and improve theefficiency of radiation regulation.

The Combing Practice on RP Management Procedure System of NPP

Lin Faxiong, Chen Xiaoping, Liang Jun

RADIATION PROTECTION BULLETIN. 2017, 37(6):  22-26. 

Abstract ( 47 )  

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The combing practice of radiation protection management procedure system in Zhangzhou NPP is summarized. One combing method that can be used for NPPs, especially under construction, is then presented.

Natural Radionuclide Level Monitoring of Environmental Samplesfrom Uranium Mines in Guangdong Province

Song Haiqing, Chen Wentao, Li Lingjuan, Liang Guiyuan, Zhang Yanjin, Wu Guibiao

RADIATION PROTECTION BULLETIN. 2017, 37(6):  27-30. 

Abstract ( 40 )  

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The monitoring results given by gammaspectrometry for natural radionuclide of ²¹⁰Pb, ²³⁸U, ²²⁶Ra, ²³²Th, ⁴⁰K, ⁷Be and etc., from 2013 to2015, in aerosol, rice, vegetable, rice soil, vegetable soil and river sedimentsamples from uranium mines in Guangdong province is presented.

Lessons Learned from Spent Radioactive Source Management in an Irradiation Plant

Wu Junde¹, Zhang Jieping², Zhao Jiancheng³, Xu Shuhe²

RADIATION PROTECTION BULLETIN. 2017, 37(6):  31-33. 

Abstract ( 38 )  

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In 2012, the management of spent ⁶⁰Co sources was carried out in a 1984-built irradiation plant, which isdiscontinued for many years. It is found in actual work that due to the time elapsed and poor management, there is incomplete source-term information, and external conditions for reconditioning and recycling are not available for them. Thelessons learned in the process of management are summarized, along with some suggestions for future work proposed.

Nuclear Emergency Environmental Monitoring Vehicle and Vehicle System Overview of Tianwan NPP

Chen Liang, Wu Chunyuan

RADIATION PROTECTION BULLETIN. 2017, 37(6):  34-39. 

Abstract ( 49 )  

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Radiation environmental monitoring isan important part of nuclear emergency work. After the Fukushima nuclear accident, Tianwan NPP, under the national safety improvement requirements, has its nuclear emergency monitoring vehicles and vehicle system upgraded in order to ensurethe rapid and effective conduct of off-site emergency radiation monitoring inthe case of nuclear accidents. The main functions of the upgraded vehicle systeminclude real-time data acquisition, data trend analysis, vehicle real-time trend trajectory tracking, emergency planning zone display, vehicle-mounted spectrometer, microwave data transmission. The basic functions of nuclear emergency environmental monitoring vehicle and vehicle system of Tianwan NPP are described.