RF design of 650-MHz 2-cell cavity for CEPC

作     者：Hong-Juan Zheng Jie Gao Ji-Yuan Zhai Peng Sha Fei-Si He Zhong-Quan Li Song Jin Zheng-Hui Mi Jian-Kui Hao 

作者机构：Key Laboratory of Particle Acceleration Physics and TechnologyInstitute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Institute of Heavy Ion Physics&State Key Laboratory of NuclearPhysics and TechnologyPeking UniversityBeijing 100871China 

基　　金：supported by the National Key Programme for S&T Research and Development(No.2016YFA0400400) 

出 版 物：《Nuclear Science and Techniques》 (核技术（英文）)

年 卷 期：2019年第30卷第10期

页      码：95-104页

摘      要：In order to meet the requirements of the Circular Electron Positron Collider(CEPC),a 650-MHz 2-cell superconducting cavity was proposed and *** this study,we show the progress in the cavity design for the *** radio frequency and mechanical designs are ready for the first design version,called CEPC-V1.A cryomodule,which consists of two 650-MHz 2-cell cavities,was scheduled the last ***,prototypes of the 2-cell cavity based on this design were fabricated and tested the following *** vertical test results show that multipacting(MP)exists from 10 to 19 MV/*** will increase the operational risk of the CEPC,while the continuous-wave operation for the 650-MHz cavity is 19.7 MV/*** trapped modes were also found,which exist because of the identical half-cell ***,a few improvements regarding MP and more efficient extraction of higher-order mode power are discussed.A new type of cavity design,called CEPC-V2,is also discussed in this paper.

主 题 词：650-MHz cavity Multipacting Higher-order mode 

学科分类：07[理学] 070202[070202] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1007/s41365-019-0671-6

馆 藏 号：203778178...