Development and Performance of the First Nb_(3)Sn Thin-Film Cavity via Bronze Process

作     者：Ming Lu Didi Luo Feng Pan Chunlong Li Shichun Huang Ziqin Yang Andong Wu Qingwei Chu Tongtong Zhu Shuai Wu Teng Tan Hao Guo 路明;罗迪迪;潘峰;李春龙;皇世春;杨自钦;吴安东;初青伟;朱同同;邬帅;谭腾;郭浩

作者机构：Institute of Modern PhysicsChinese Academy of SciencesLanzhou 730000China School of Nuclear Science and TechnologyUniversity of Chinese Academy of SciencesBeijing 100049China School of Nuclear Science and TechnologyLanzhou UniversityLanzhou 730000China 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2022年第39卷第11期

页      面：33-36页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.12075295 and 12105335) 

主　　题：Nb_(3)Sn cavity film 

摘      要：Low-temperature synthesis of Nb_(3)Sn thin-film cavity is of great significance in the field of superconducting radio frequency(SRF).The bronze process can grow only stable Nb_(3)Sn phase at 700℃,so it is considered to be the most promising process for low-temperature synthesis of Nb3Sn thin-film *** successfully fabricated the worldwide first Nb_(3)Sn thin-film cavity by bronze *** technically solved the key problems of precursor preparation,characterized and analyzed the uniformity of the Nb_(3)Sn film,and tested the performance of the cutout samples and the whole cavity of the Nb_(3)Sn *** is obtained that the Q0value of the cavity at 4.2 K is about 1.2×10^(9),which is greater than the performance of the bulk-niobium cavity under the same *** result means that the preparation of Nb_(3)Sn by bronze process has the great potential to more practical copper-based Nb_(3)Sn thin-film cavity,which is expected to achieve a substantial improvement in the performance of SRF cavity and comprehensive engineering applications.