144 MHz Niobium Sputtered Superconducting Cavity Physical Design for CIAE Tandem Upgrade Project

To design niobium sputtered superconducting cavity which will be used in HI-13 tandem upgrade project, RF performance and mechanical frequency of QWR cavity is analyzed by numerical simulation. Considered temperatures of cavity body are different in manufacture case and online case, geometry of cavity in room temperature environment is given. Affection of asymmetrical electromagnetic field of QWR cavity to beam transfer is also analyzed in this article.