Dynamic linear calibration method for a wide range neutron flux monitor system in ITER  

作　　者：LI Shiping XU Xiufeng CAO Hongrui YANG Qingwei YIN Zejie 

机构地区：[1]State Key Laboratory of Particle Detection and Electronics, University of Science andTechnology of China [2]Department of Modern Physics, University of Science and Technology of China [3]Southwestern Institute of Physics

出　　处：《Nuclear Science and Techniques》2013年第4期57-60,共4页核技术（英文）

基　　金：Supported by ITER Plan National Major Project(No.2008GB109000)

摘　　要：As a key part of the diagnosis system in the International Thermonuclear Experimental Reactor(ITER),the neutron flux monitor(NFM),which measures the neutron intensity of the fusion reaction,is a Counting-Campbelling system with a large dynamic counting range.A dynamic linear calibration method is proposed in this paper to solve the problem of cross-over between the different counting and Campbelling channels,and improve the accuracy of the cross-calibration for long-term operation.The experimental results show that the NFM system with the dynamic linear calibration system can obtain the neutron flux of the fusion reactor in real time and realize the seamless measurement area connection between the two channels.As a key part of the diagnosis system in the International Thermonuclear Experimental Reactor（ITER）,the neutron flux monitor（NFM）,which measures the neutron intensity of the fusion reaction,is a Counting-Campbelling system with a large dynamic counting range.A dynamic linear calibration method is proposed in this paper to solve the problem of cross-over between the different counting and Campbelling channels,and improve the accuracy of the cross-calibration for long-term operation.The experimental results show that the NFM system with the dynamic linear calibration system can obtain the neutron flux of the fusion reactor in real time and realize the seamless measurement area connection between the two channels.

关 键 词：动态非线性 监测系统 中子通量 校正方法 ITER 国际热核实验反应堆 聚变反应堆 组成部分 

分 类 号：TL32[核科学技术—核技术及应用]