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- Title
Improving the stability of pulse superconducting radio frequency cavities by the construction of an Al–Nb double layer structure.
- Authors
Wang, Zhi; He, Yuan; Huang, Qitong; Liang, Zehua; Xiao, Liangang; Xu, Mengxin; Li, Xiaoli; Li, Chunlong; Wang, Zhijun; Liu, Lubei; Liu, Tong; Zhang, Shengxue; Jiang, Tiancai; Guo, Hao; Xiong, Pingran; Min, Yonggang; Liu, Yidong; Wu, Jiahao; Wang, Changlin; Liu, Guo Chang
- Abstract
Superconducting Radio Frequency technologies are widely employed in particle accelerators to explore the frontiers of science. Pure niobium cavity with 2.8–4 mm thickness is the traditional technology of a compromise between the thermal conduction and mechanic stability. To meet the requirements of the higher stability of accelerators such as ADS linac, high intensity pulse linac, a solution for enhancing the stability of superconducting cavities by the Al–Nb double layer structure is proposed while maintaining enough heat transfer capacity. In this work, a 3.9 GHz single cell Al–Nb elliptical cavity was fabricated to validate this proposal. During the vertical testing, the cavity shows a significant enhancement in the mechanical stability with LFD coefficient reduction by 88% compared to the pure Nb cavity and Q 0 value is kept at the same level. Additionally, the basic parameters of Al–Nb composite material were tested and reported as well.
- Subjects
MATERIALS testing; PARTICLE accelerators; HEAT capacity; HEAT transfer; RADIO technology; RADIO frequency
- Publication
International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics, 2024, Vol 39, Issue 11/12, p1
- ISSN
0217-751X
- Publication type
Article
- DOI
10.1142/S0217751X24500362