[en] To further improve the integrity and safety ol nuclear power plant supervisory monitoring system database, dual-hot standby system is designed. The core of dual-hot standby is failover cluster. Set for ensuring the high availability (always on) of the database and server. Goal of the this article is to study the realization of SQL server 2012 high availability cluster on Window Server 2008 R2 version, for realizing dual-hot standby function. (authors)

[en] The environmental monitoring system for radioactive lab is a kind of computer system to manage the environmental monitoring devices of the lab. It integrates the monitoring devices, collects their data and manages them. The article mainly introduces the design and the advantages of the system. The design can meet the user's need for information and digitization. The system has good expansibility and maintainability. Its functions are complete and the technology is advanced. Besides the general radiative monitoring, video monitoring is taken into account in order to satisfy user's needs. (authors)

[en] The article introduced digital radiation monitor system. The contents include: how to use advanced computer net technology to establish equipment net for nuclear facility, how to control and manage measuring instruments on field equipment net by local area net, how to manage and issue radiation monitoring data by internet

[en] In this paper it is described that design survey and design point of KRS network server of Yangjiang nucleus electricity environment radiate monitoring system. (authors)

[en] The article has all-around discussed the basic elements and characteristics of nuclear power plant environmental monitoring system, centering on the choice of gamma radiation detector, and the network mode, as well as anti-jamming design. Also, the arguments are aimed at the purpose and necessity of the nuclear power plant environmental monitoring system building. The network of power plant environmental monitoring system is a complicated process. The system is so special that we will meet some questions and difficulties when building the network. The paper also demonstrates the specific solutions to the questions and difficulties of network in some details. (authors)

[en] This article is all-around discussed the basic elements and characteristics of nuclear power plant environmental monitoring system centering on the choice of gamma radiation detector, and the network mode, as well as anti-jamming design. Also, the words are aimed at the purpose and necessity of the nuclear power plant environmental monitoring system building. The network of power plant environmental monitoring system is a complicated course. The system is so especial that we will meet some questions and difficulties when network. This paper also demonstrates the specific solutions to the questions and difficulties of network in some details. (authors)

[en] The author describes the model XH-3001 whole body surface contamination monitor. System structure, function, design characteristic of the monitor are expounded. Finally, the monitor operating case records are presented

[en] This paper introduces the design scheme and component function of γ dose-rate monitor system for accident and post-accident reactor building. The structure design is 0.1 L parallel double ionization chamber, pure aluminum is used as electrode material, connected by armored cable, and electrometer adopts combination of I-V and V-F. During LOCA environmental test of HPR1000, armored cable was broken, the measured value of insulation resistance was less than the prescribed value, and the deviation of output current value of loading operation test exceeded the prescribed maximum deviation value. It is analyzed that there are some problems in the interface design and welding technology between armored cable and ionization chamber. It is proposed to improve the processing technology, welding method and testing equipment. (authors)