摘要
100MeV强流质子回旋加速器(CYCIAE-100)加速H-,引出质子束能量为75~100MeV、最大束流强度为200μA。为对束流输运线上的质子束流强度进行无阻挡实时监测,选择了直流流强监测器(DCCT),其在设计上考虑了空间限制、杂散磁场和外部高频干扰信号等因素对探头的影响。探头外采用了三重磁屏蔽设计,磁屏蔽外为1层黄铜的电屏蔽。采用了绝缘垫圈隔断束流输运线的直流导电性,束流输运线管壁通有冷却水以保证探头温度稳定。在绝缘垫圈处增加电容以满足探头对电容值的要求。采用高精度PLC-AI模块对DCCT的输出电压进行了读取。通过模拟束流的实验验证表明,DCCT设计合理可行,测量结果的线性度、误差等指标符合设计要求。
The 100 MeV High-intensity Proton Cyclotron(CYCIAE-100)accelerates H-.The proton beam energy is 75-100 MeV,and the maximum beam intensity is 200μA.In order to measure the real-time proton beam intensity without disturbance,the DC current transformer system was chosen.The influence of space restriction,stray magnetic field and RF noise on detector was considered in the design of DC current transformer system,and three layers of magnetic shields were added out of the detector.One layer of brass electrical shield was outside the magnetic shields.An insulation gasket was used to interrupt the DC electrical conductivity of the beam line,and water cooling was used in the beam line pipe to keep the detector’s temperature stable.The capacitor was added to satisfy the demand of the detector at the gasket.PLC-AI module was used to get the output voltage from the DC current transformer system.The test result with simulating beam shows that the design of DC current transformer system is feasible,and the linearity and error of measurement result meet design demand.
作者
温立鹏
管锋平
郑侠
安世忠
吕银龙
张天爵
WEN Lipeng;GUAN Fengping;ZHENG Xia;AN Shizhong;LV Yinlong;ZHANG Tianjue(China Institute of Atomic Energy,P.O.Box 275-3,Beijing 102413,China)
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2018年第11期2089-2094,共6页
Atomic Energy Science and Technology
