论文标题
稳定的CW操作NB $ _3 $ SN SRF腔，使用传导冷却为10 mV/m
Stable CW Operation of Nb$_3$Sn SRF Cavity at 10 MV/m using Conduction Cooling
论文作者
论文摘要
超导射频（SRF）加速腔是一种有前途的技术，用于紧凑，高功率，MEV尺度加速器，为在工业，医学，国家安全和科学方面的广泛潜在应用提供了连续的光束操作。但是，传统上，SRF腔是使用复杂且昂贵的低温基础设施冷却的，这是在小型系统中采用这项强大技术的重要障碍。随着最近在高性能NB $ _3 $ sn涂层的SRF腔和引入Croicoolers的进展，可以在4.2 K以下提供交钥匙风格的传导冷却，现在可以克服此障碍。在康奈尔大学（Cornell University），我们开发了一种原型设置，该设置利用商业冷冻机器为2.6 GHz NB $ _3 $ SN涂层SRF SRF腔提供必要的冷却。现在，我们已经在连续模式下展示了第一次稳定的操作，以高达10 mV/m的加速字段，质量为Q $ _0 $ = 4x10 $^9 $，从而实现了使Thr-Keye SRF成为现实的重要里程碑。
Superconducting radio-frequency (SRF) accelerating cavities are a promising technology for compact, high-power, MeV-scale accelerators, providing continuous beam operation for a wide range of potential applications in industry, medicine, national security, and science. However, SRF cavities have traditionally been cooled using complex and expensive cryogenic infrastructure, which has been a significant obstacle in employing this powerful technology in small-scale systems. With the recent progress on high-performance Nb$_3$Sn-coated SRF cavities and the introduction of cryocoolers, which can provide turn-key style conduction cooling below 4.2 K, this barrier can now be overcome. At Cornell University, we have developed a prototype setup that utilizes a commercial cryocooler to provide the necessary cooling for operation of a 2.6 GHz Nb$_3$Sn-coated SRF cavity. We have now demonstrated first stable operation in continuous mode at accelerating fields up to 10 MV/m with a quality factor of Q$_0$ = 4x10$^9$, thereby achieving an important milestone in making turn-key SRF a reality.
