Speaker
Description
Surface defects (e.g., contaminants, scratches, pits) introduced during the processing and welding of superconducting cavities can degrade cavity performance and yield, thereby limiting the surface treatment throughput of the Wuxi platform and hindering the construction progress of the SHINE project. To address this issue, extensive defect repair efforts have been carried out. Techniques such as buffered chemical polishing (BCP), centrifugal barrel polishing (CBP), and local grinding have been employed to restore initially non‑compliant defective cavities to levels exceeding the SHINE design specifications, significantly improving the final yield and utilization rate of the superconducting cavities. In particular, identifying and removing surface defects prior to electropolishing (EP) can substantially reduce the rework rate, representing an effective approach to achieving a breakthrough in batch production capacity of superconducting cavities. Together with other complementary improvements, the annual throughput of the Wuxi platform has reached over 200 cavities.
| I have read and accept the Privacy Policy Statement | Yes |
|---|