Abstract
The quality of particle beams depends strongly on the quality of the accelerator. The major components of particle accelerators are beam optics elements such as quadrupole magnets, bending magnets and accelerating structures such as RF-cavities. The numerical field analysis of magnetic elements is well advanced and has become a standard tool in virtually any accelerator design. In this area there is only little progress to report as only in very specialized areas remains some need for new research. This is however not the case for the design procedures of accelerating structures. With the ever increasing demands for higher energy and very high quality beams the demands for electromagnetic design tools is drastically increasing. In this paper we focus on the latest developments in the area of high precision field computation and discuss new developments for the analysis of parasitic trapped modes.
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