中国散裂中子源旋转线圈测量系统研制  

Development of rotating coil measurement system for China Spallation Neutron Source

作　　者：周建新[1,2,3] 康文 李帅[1,2,3] 尹宝贵 吴煜文 刘艺琴[1,2,3] 吴锡 李藜 邓昌东 Zhou Jianxin;Kang Wen;Li Shuai;Yin Baogui;Wu Yuwen;Liu Yiqin;Wu Xi;Li Li;Deng Changdong(Institute of High Energy Physics,Chinese Academy Sciences,Beijing 100049,China;Dongguan Neutron Science Center,Dongguan 523803,China;Dongguan Key Laboratory of High Precision Magnetic Field Measurement,Dongguan 523803,China)

机构地区：[1]中国科学院高能物理研究所,北京100049 [2]东莞中子科学中心,广东东莞523803 [3]东莞高精度磁场测量重点实验室,广东东莞523803

出　　处：《强激光与粒子束》2018年第10期94-99,共6页High Power Laser and Particle Beams

基　　金：国家重大工程项目(中国散裂中子源工程);国家自然科学基金项目(11775241)

摘　　要：中国散裂中子源(CSNS)加速器主要由一台直线加速器、一台快循环加速器以及低能、高能输运线组成。针对CSNS加速器部分直流磁铁研制了一套旋转线圈测量系统。对系统的研制方案、功能、精度、完成的磁铁类型以及部分测量结果进行介绍。该系统解决了CSNS批量磁铁之间的不同中心高度、质量、有效长度、磁场强度的兼容性难题。经过测试运行,积分场测量重复性误差好于±0. 02%,空间谐波重复性误差好于0. 005%,磁中心测量重复性误差好于±0. 03 mm,顺利完成了中国散裂中子源工程150台多种类型磁铁的检测任务。The China Spallation Neutron Source(CSNS)accelerator mainly consists of a linear accelerator,a 1.6 GeV rapid cycling synchrotron(RCS),a low energy transport line and a high energy transport line.A rotating coil measurement system was developed for the DC magnets of the CSNS accelerator.This system solves the compatibility problems of different center heights,masses,effective lengths,and magnetic field strengths among CSNS bulk magnets.After testing,the repeatability error of the integral field measurement is less than±0.02%,the repeatability error of harmonics is less than 0.005%,the repeatability error of the magnetic center measurement is less than±0.03mm.It has successfully completed the task of detecting 150 magnets of the China Spallation Neutron Source.In this paper,the development plan,function,accuracy,types of measured magnets and some measurement results are introduced.

关 键 词：旋转线圈 磁场测量 校正磁铁 四极磁铁 六极磁铁 

分 类 号：TL503.8[核科学技术—核技术及应用]