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

被引：1

作者：

Hong-Juan Zheng ^{[1
]}

Jie Gao ^{[1
]}

Ji-Yuan Zhai ^{[1
]}

Peng Sha ^{[1
]}

Fei-Si He ^{[1
]}

Zhong-Quan Li ^{[1
]}

Song Jin ^{[1
]}

Zheng-Hui Mi ^{[1
]}

Jian-Kui Hao ^{[2
]}

机构：

[1] Key Laboratory of Particle Acceleration Physics and Technology, Institute of High Energy Physics, Chinese Academy of Sciences

[2] Institute of Heavy Ion Physics & State Key Laboratory of Nuclear, Physics and Technology, Peking University

来源：

NuclearScienceandTechniques | 2019年 / 30卷 / 10期

关键词：

650-MHz cavity; Multipacting; Higher-order mode;

D O I：

暂无

中图分类号：

O572.214 [];

学科分类号：

070202 ;

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 designed. In this study, we show the progress in the cavity design for the CEPC. 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 year. Therefore, prototypes of the 2-cell cavity based on this design were fabricated and tested the following year. The vertical test results show that multipacting(MP) exists from 10 to 19 MV/m. This will increase the operational risk of the CEPC, while the continuous-wave operation for the 650-MHz cavity is 19.7 MV/m. Two trapped modes were also found, which exist because of the identical half-cell design. Therefore, 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.

引用

页码：53 / 62

页数：10

共 3 条

[1] RF design of 650-MHz 2-cell cavity for CEPC
Zheng, Hong-Juan
Gao, Jie
Zhai, Ji-Yuan
Sha, Peng
He, Fei-Si
Li, Zhong-Quan
Jin, Song
Mi, Zheng-Hui
Hao, Jian-Kui
NUCLEAR SCIENCE AND TECHNIQUES, 2019, 30 (10)
[2] RF design of 650-MHz 2-cell cavity for CEPC
Hong-Juan Zheng
Jie Gao
Ji-Yuan Zhai
Peng Sha
Fei-Si He
Zhong-Quan Li
Song Jin
Zheng-Hui Mi
Jian-Kui Hao
Nuclear Science and Techniques, 2019, 30
[3] Development of the superconducting rf 2-cell cavity for cERL injector at KEK
Watanabe, K.
Noguchi, S.
Kako, E.
Umemori, K.
Shishido, T.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2013, 714 : 67 - 82

← 1 →