摘要
随着粒子加速器物理实验的深入研究,对束流质量的要求逐渐提高。为获得极高稳定度和极低噪声的磁场环境,分析设计了开关模式和线性模式结合的高精度直流励磁电源。前级开关电源提供稳定的功率来源,串联后级线性电源控制电流线性放大后进行输出。在电源电流和管压降控制环路基础上,通过对关键部件的温度补偿措施,进一步提高了输出电流的稳定度;通过对后级线性电源的模块化设计,减小了电源体积并提高了运维便利性。实测结果表明:8 h长期电流稳定度达到1.3×10^(-6),且噪声极低。
With the in-depth study of particle accelerator physics experiments,the requirements for higher beam quality have gradually increased.To obtain a magnetic field environment with extremely high stability and extremely low noise,a high-precision DC excitation power supply combining switching mode and linear mode was analyzed and designed.The front-end switching power supply provides a stable power source,and the back-end linear power supply is connected in series to control the linear amplification of the current for output.Based on the control loop of power supply current and tube voltage drop,the stability of the output current has been further improved through temperature compensation measures for key components.Through the modular design of the back-end linear power supply,the volume of the power supply has been reduced and the convenience of operation and maintenance has been improved.The measured results show that the long-term current stability for 8 h reaches 1.3×10^(−6),and the noise is extremely low.
作者
周宁
詹荣霖
燕宏斌
张华剑
李继强
王晓俊
高大庆
郭宏亮
谭玉莲
Zhou Ning;Zhan Ronglin;Yan Hongbin;Zhang Huajian;Li Jiqiang;Wang Xiaojun;Gao Daqing;Guo Hongliang;Tan Yulian(Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;School of Nuclear Science and Technology,University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《强激光与粒子束》
北大核心
2025年第7期41-47,共7页
High Power Laser and Particle Beams
基金
国家自然科学基金青年科学基金项目(E411571GJ0)。
关键词
加速器电源
极高稳定度
线性放大
温度补偿
模块化
accelerator power supply
extremely high stability
linear amplification
temperature compensation
modularization
