Table of Content

20 February 2014 Volume 34 Issue 1

  

Issues

Assessment of Radiological Impact on Non-human Biota near In-land NPP—Primary Assessment of AP1000

Fu Xiaocheng, Wang Rujing, Du Fenglei

RADIATION PROTECTION BULLETIN. 2014, 34(1):  1-7. 

Abstract ( 27 )   PDF (164KB) ( 35 )  

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Radiological impacts on non-human biota from inland nuclear power plant were emphasized and required in environmentalimpact statement. However there were few researches on radiological impact of liquid effluent on AP1000 NPPs, with the relevant data unavailable. With Pengze NPP as an example, this paper is aimed to develop a set of data useful for assessment of radiological impacts on aquatic organisms caused by liquid effluent fromAP1000 NPP on the basis of experimental data and literature consultation. The results showed that the data sets are suitable for assessment, and the construction of the Pengze NPP (phase I) would not cause any adverse impacts on aquatic organisms nearby.

Improvement of Emergency Action Levels of Heavy Water Reactor NPP

Zhang Jiangang, Jin Li, Tang Rongyao, Yang Yapeng, Xu Xiaoxiao, Wang Xuexin

RADIATION PROTECTION BULLETIN. 2014, 34(1):  8-11. 

Abstract ( 31 )   PDF (195KB) ( 34 )  

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This paper describes the revision of the initial conditions (IC) and emergency action levels (EALs) of the Qinshan-III 2010 version. The ongoing revision was made considering the changes made in the relevant IAEA standards and documents, in the US NRC guides and in the nuclearsafety guides of Chinese version. Both current practice of the Qishan-III NPPIC and EALs and the changes in the QNPP updated technical documents are reflected in the revision. The main revisions focus applicable operation modes, EALs for gamma radiation levels in containment, EALs for abnormal radiation level or radioactive effluents, and IC/EALs for natural disasters covered at the QNPP Baseand for chemical hazards and security events.

Progresses

Investigation on the Near Field Temperature Evolution at Domestic and Overseas Nuclear Waste Repositories

Wan Lei, Sun Qinghong, Li Honghui, Liu Jianqin, Zhao Shuaiwei, Liu Wei

RADIATION PROTECTION BULLETIN. 2014, 34(1):  12-19. 

Abstract ( 46 )   PDF (748KB) ( 102 )  

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Heat arising from decay of the radionuclides in the nuclear waste transmits outward by the conduction, convection andradiation. It results in temperature rising in containers, buffer and near fieldhost, which leads to temperature gratitude to be formed between waste and host.The time-dependent gratitude variations eventually affect the ground water system and radionuclide migration. It is necessary to calculate and predict the near field temperature. This study investigates thermal analyses of the repositories in some countries and present a preliminary summary of the source terms, simplified repository model, calculation methodology and results, which could be as areference for HLW repository in China.

Articles

Medical Treatment and Psychological Assessment of 11 Cases with Overdose Exposure in Three Radiation Accidents

Yang Xiaoqiang, Wang Li, Bian Huanhui, Cen Weibo, Wang Youyou, Liu Yulong

RADIATION PROTECTION BULLETIN. 2014, 34(1):  20-24. 

Abstract ( 29 )   PDF (141KB) ( 54 )  

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The medical history was collected from11 cases in 3 accidents using "face to face" mode. These cases were examined using blood cell analysis, liver and renal function, immune function, endocrine function et al. The biological dose was estimated using the analysis of peripheralblood lymphocyte chromosome aberration, Gbanding and the micronucleus (CB). Thepsychological status of cases, before and after the treatment of radiation workers, was evaluated by application of Cattell sixteen personality factor Test (16PF), self rating depression scale (SDS) and self rating anxiety scale (SAS). Theresults showed that the worker exposed to ¹⁹²Ir was diagnosed with acute radiological skin injury degree II by GSH and has been largely improving after the local conservative treatment. The 4 cases of chronic radiation injuries were diagnosed as the object of observation, without biological dose estimated. There was a big psychological influence over the overexposed. The research also indicated that most of the accidents were caused by human error and the victims will represent appear aseries of psychological changes after the accident.

A Preliminary Research of Radiation Workers in a City of Mental Health

Zhang Bingjie, Liu Tongzhen, Jia Tianhe, Wang Jianwei, Ding Weimin, Mao Yuxuan, Kong Xueyuan, Liu Yulong

RADIATION PROTECTION BULLETIN. 2014, 34(1):  25-27. 

Abstract ( 42 )   PDF (162KB) ( 21 )  

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By using of Mental Health Evaluation Scale (trial version)" and cluster random sampling method, a total of 318 radiological staffs in a city were investigated and analyzed for their mental health and mental health status. The results show that the mental health of radiologicalworkers in the city can be fit their basic job, with there being some differences in psychology and mental health.

Reviews

The Process of Spent Resin Treatment

Gao Shuai, Guo Xiliang, Gao Chao, Feng Wendong, Li Honghui, Jia Meilan

RADIATION PROTECTION BULLETIN. 2014, 34(1):  28-33. 

Abstract ( 32 )   PDF (252KB) ( 189 )  

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Seveal types of technologies for treatment of spent resin from NPPs are described and compared in this report,and Fenton Wet Oxidation or Drum Drying is recommended to use as the treatment technology in our country.

Experiences

Diversity in Design of Reactor Protection System

Xin Huimin

RADIATION PROTECTION BULLETIN. 2014, 34(1):  34-37. 

Abstract ( 25 )   PDF (291KB) ( 60 )  

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This paper introduces Qinshan NuclearPower Plant expansion project (Fangjiangshan nuclear power project) with regardto the diversity in reactor protection system design. Demonstration was made onthe basis of design fundamentals, analytical methods and results. It has proventhe necessity and correctness of the diversity of reactor protection system design.

Failure Analysis for Manipulator on Mobile SHARS Conditioning Equipment

Gao Chao, An Hongxiang

RADIATION PROTECTION BULLETIN. 2014, 34(1):  38-40. 

Abstract ( 23 )   PDF (263KB) ( 14 )  

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Manipulator is a key part of mobile spent high active radioactive source (SHARS) conditioning equipment. Its stabilitywill affect the successful operation of the conditioning equipment. Based on the failure analysis of ZC205B master slave hinged manipulator in cold test, thispaper is intended to provide the identification and correction of the problems existing in the process of its operation, for the purpose of providing guidance on the future thermal test.

Analysis of Equipment Management During Nuclear Plant Construction

Li Xiang, Ren Yi, Zhang Jia, Liu Jinjin, Liu Yun

RADIATION PROTECTION BULLETIN. 2014, 34(1):  41-43. 

Abstract ( 29 )   PDF (114KB) ( 69 )  

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The equipment management during nuclear plant construction includes the process from equipment installation on site tohand-over to professional test team. Contractor's equipment management for nuclear power plants in the process of construction mainly includes organization, planning, execution, and feedback. Scientific and reasonable equipment managementmethod can not only create the favorable environment for the NPP commissioningand operation, but also has important significance for equipment maintenance, operation and life extension.