Research and Design of the RF Cavity for an 11 MeV Superconducting Cyclotron

doi:10.3390/app14093549

	Research and Design of the RF Cavity for an 11 MeV Superconducting Cyclotron
	Wu, Yue1,2 ; He, Zi-Feng 2; Wan, Wei-Shi1 ; Zheng, Pan-Pan1,2 ; Yu, Hua-Fei 2
	2024-05
发表期刊	APPLIED SCIENCES-BASEL (IF:2.5[JCR-2023],2.7[5-Year])
EISSN	2076-3417
卷号	14 期号:9
发表状态	已发表
DOI	10.3390/app14093549
摘要	Featured Application The focus of this paper is on the design of the RF (Radio Frequency) resonant cavities required for small modular superconducting cyclotrons. The design of these RF cavities aims to match the smaller extraction radius of superconducting cyclotrons and make easier of installation and maintenance. To this purpose, one has to adopt a design that allows for easy assembly and disassembly with the magnet system that has been adopted. Through the study of the circuitry of such RF cavities, along with calculations of electromagnetic fields and methods of frequency tuning, we provide a set of solutions that can serve as a reference for the design of smaller superconducting accelerators in the future. This not only helps in advancing the technology of superconducting cyclotrons but also can provide a method reference for related technical fields.Abstract In contrast to the room temperature cyclotron, the superconducting cyclotron's high operational magnetic field and small extraction radius lead to a magnet design with a reduced radius. This limits the space available for the RF cavity in the 11 MeV superconducting cyclotron, necessitating a more compact RF cavity design. By using the transmission line theory, the complex structure of the quarter-wavelength coaxial cavity can be represented as a microwave circuit. Through relevant theoretical analytical formulas, equivalent circuit parameters can be derived. The resonant frequency of the RF cavity is then determined using the equivalent circuit method. The optimization of the RF cavity structure was achieved by creating a numerical model and conducting finite element numerical calculations on the high-frequency resonant system. The comparative results between the equivalent circuit and numerical calculations indicate that the frequency error remains within 0.1%, validating the compact RF cavity design. A multiple linear regression analysis facilitates the prediction of resonance frequency across various parameter variables. By analyzing the fitting formula, RF cavity machining error requirements are established, ensuring a prediction error within 1%, thus meeting engineering design criteria.
关键词	superconducting cyclotron compact resonant cavity microwave equivalent circuit multiple linear regression
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收录类别	SCI
语种	英语
资助项目	Major Development Project of the Shanghai Institute of Applied Physics, Chinese Academy of Sciences[Y951011031]
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:001219825700001
出版者	MDPI
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/378321
专题	物质科学与技术学院物质科学与技术学院_外聘教师物质科学与技术学院_博士生
通讯作者	He, Zi-Feng
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
第一作者单位	物质科学与技术学院
第一作者的第一单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Wu, Yue,He, Zi-Feng,Wan, Wei-Shi,et al. Research and Design of the RF Cavity for an 11 MeV Superconducting Cyclotron[J]. APPLIED SCIENCES-BASEL,2024,14(9).
APA	Wu, Yue,He, Zi-Feng,Wan, Wei-Shi,Zheng, Pan-Pan,&Yu, Hua-Fei.(2024).Research and Design of the RF Cavity for an 11 MeV Superconducting Cyclotron.APPLIED SCIENCES-BASEL,14(9).
MLA	Wu, Yue,et al."Research and Design of the RF Cavity for an 11 MeV Superconducting Cyclotron".APPLIED SCIENCES-BASEL 14.9(2024).