用于托卡马克磁场测量的金属霍尔探测器的研制  

Development of metal Hall detector for magnetic field measurement in a tokamak

作　　者：王傲 季小全[1] 孙腾飞[1] 梁绍勇 张均钊 崔步天 高金明[1] 杨青巍[1] WANG Ao;JI Xiao-quan;SUN Teng-fei;LIANG Shao-yong;ZHANG Jun-zhao;CUI Bu-tian;GAO Jin-ming;YANG Qing-wei(Southwestern Institute of Physics,Chengdu 610041)

机构地区：[1]核工业西南物理研究院,成都610041

出　　处：《核聚变与等离子体物理》2023年第3期317-323,共7页Nuclear Fusion and Plasma Physics

基　　金：国家磁约束核聚变能研究专项(2018YFE0301102,2017YFE0301201)。

摘　　要：金属霍尔探测器被认为是未来磁约束聚变堆磁场测量的重要工具之一。介绍了金属霍尔探测器系统的研制,包括测量原理、探测器制作工艺、电子学系统研制、标定系统建设及测试结果等。采用金属铋作为霍尔材料,有源区厚度为100nm,放大器的放大倍数为2000~200000倍。测试结果显示,当待测磁场在3mT以上时,系统的测量精度优于±1%,可以达到磁探针的标定精度,能够满足托卡马克装置的磁场测量要求。The metal Hall detector is one of the most important diagnostics for magnetic field measurement of magnetically confined fusion reactor in future.The development of the metal Hall detector system is introduced,including the principles of measurement,the manufacture technology of the detector,the development of the electronics system,the construction of the calibration system and the test results.The metal bismuth is used as the Hall material,the thickness of the active region is 100nm,and the factor of the amplifier is 2000-200000 times.The test results show that when the magnetic field is above 30Gs,the measuring accuracy of the system is better than±1%,which can reach the calibration accuracy of the magnetic probe and meet the magnetic field measurement requirements of a tokamak.

关 键 词：托卡马克 金属霍尔探测器 霍尔效应 磁场测量 

分 类 号：TL655[核科学技术—核技术及应用]