Speaker
Description
Field emission is one of the main problems that is difficult to completely avoid in superconducting accelerator project construction, and it is usually considered to be caused by particles or foreign materials. Although careful assembly and cleaning can minimize or eliminate this issue, field emission may still occur to some extent. This report focuses on the field emission problem faced by the current SHINE project, including the field emission of bare cavities after surface treatment and of cryomodules after clean assembly. Through statistical analysis, we found some connection between processing and field emission, and we hope that these problems will be gradually solved in the future to improve the field emission-free rate of SHINE cryomodules.
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