A novel digital neutron flux monitor for international thermonuclear experimental reactor  

作　　者：Xiang ZHOU Zihao LIU Chao CHEN Renjie ZHU Li ZHAO Lingfeng WEI Zejie YIN 周翔;刘子豪;陈超;朱仁杰;赵丽;魏凌峰;阴泽杰(State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, People's Republic of China;Department of Modern Physics, University of Science and Technology of China, Hefei 230026, People', Republic of China;Center for Fusion Science of Southwestern Institute of Physics, Chengdu 610041, People's Republic of China)

机构地区：[1]State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China,Hefei 230026,People＇s Republic of China [2]Department of Modern Physics,University of Science and Technology of China,Hefei 230026,People＇s Republic of China [3]Center for Fusion Science of Southwestern Institute of Physics,Chengdu 610041,People＇s Republic of China

出　　处：《Plasma Science and Technology》2018年第6期194-199,共6页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China (Nos.11375195,11575184);the National Magnetic Confinement Fusion Energy Development Research of China (No.2013GB104003)

摘　　要：A novel full-digital real-time neutron flux monitor（NFM） has been developed for the International Thermonuclear Experimental Reactor.A measurement range of 10~9 counts per second is achieved with 3 different sensitive fission chambers.The Counting mode and Campbelling mode have been combined as a means to achieve higher measurement range.The system is based on high speed as well as parallel and pipeline processing of the field programmable gate array and has the ability to upload raw-data of analog-to-digital converter in real-time through the PXIe platform.With the advantages of the measurement range,real time performance and the ability of raw-data uploading,the digital NFM has been tested in HL-2 A experiments and reflected good experimental performance.A novel full-digital real-time neutron flux monitor（NFM） has been developed for the International Thermonuclear Experimental Reactor.A measurement range of 10~9 counts per second is achieved with 3 different sensitive fission chambers.The Counting mode and Campbelling mode have been combined as a means to achieve higher measurement range.The system is based on high speed as well as parallel and pipeline processing of the field programmable gate array and has the ability to upload raw-data of analog-to-digital converter in real-time through the PXIe platform.With the advantages of the measurement range,real time performance and the ability of raw-data uploading,the digital NFM has been tested in HL-2 A experiments and reflected good experimental performance.

关 键 词：fusion neutron flux ITER diagnostic system 

分 类 号：TL37[核科学技术—核技术及应用]