摘要
为满足超导射频腔及超导磁体低温下的加速器准直精度要求,对超流氦低温恒温器冷质量的准直调节方案进行分析。通过对冷质量的低温位移进行有限元模拟计算,获得其在2 K超流氦温区的位移变形量,利用拉伸丝型位移监测仪(WPM)在线测量数据来验证模拟分析方法。结果表明,模拟值与测量值具有较好的一致性,为底部支撑型式低温恒温器的准直调节方案设计提供了重要的数据基础。
To meet the alignment requirement of superconducting radio frequency(SRF)cavity and superconducting magnet at cryogenic temperature in the accelerator system,the design of adjustment and alignment of the cold mass in superfluid helium cryomodule should be analyzed.The cryogenic deformation of the cold mass at the 2 K superfluid helium temperature level was simulated and obtained by the finite element method,meanwhile the simulation analysis method was checked by the cryogenic deformation data of the cold mass online measured by the wire of position monitor(WPM).The results show that the simulation result and measurement result have a good consistency,and it provides an important data foundation for the alignment design in the type of bottom supported cryomodule.
作者
韩瑞雄
邹正平
朱洪岩
常正则
葛锐
李少鹏
HAN Ruixiong;ZOU Zhengping;ZHU Hongyan;CHANG Zhengze;GE Rui;LI Shaopeng(School of Energy and Power Engineering,Beihang University,Beijing 100191,China;Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China)
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2020年第10期1979-1984,共6页
Atomic Energy Science and Technology
基金
中国科学院战略性先导科技专项资助项目(XDA030213)。
关键词
超流氦
低温恒温器
低温位移
拉伸丝型位移监测仪
准直
superfluid helium
cryomodule
cryogenic deformation
wire of position monitor
alignment
