强激光与粒子束2025，Vol.37Issue(2)：108-113,6.DOI:10.11884/HPLPB202537.240154
加速器用铁氧体-碳化硅混合型高次模阻尼器的研制
Development of a ferrite-silicon carbide hybrid high-order mode damper for accelerators
摘要
Abstract
In large current accelerator beam tubes,high-frequency fields are generated when charged particles circulate within the beam pipe.To mitigate the impact on beam current,it is essential to use high-order mode damper to convert the high field energy into heat,which can then be dissipated by a cooling system.This paper presents the research,fabrication,and key performance characteristics of a hybrid high-order mode damper.The absorbing materials utilized in the damper include ferrite and silicon carbide,which can be welded to metal substrates through metallization and welding techniques.Microwave performance simulations and thermal simulations were conducted using CST and COMSOL software,respectively,leading to an optimized damper structure.Test results demonstrate that the absorption efficiency of the hybrid damper aligns closely with the calculated values in the frequency range below 1.7 GHz.However,the simulated absorption efficiency exceeds the measured results significantly above 1.7 GHz.Additionally,the vacuum leak rates,ultimate vacuum,and water resistance meet the design requirements for superconducting high-frequency cavities.关键词
高次模/阻尼器/铁氧体/碳化硅/焊接Key words
high-order-mode/damper/ferrite/silicon carbide/welding分类
能源科技引用本文复制引用
陈欣,李晨,赵伟,黄刚,向军,李天涛,杨洁,刘平,秦臻..加速器用铁氧体-碳化硅混合型高次模阻尼器的研制[J].强激光与粒子束,2025,37(2):108-113,6.基金项目
国家自然科学青年基金项目(12205280) （12205280）
