1. Third Harmonic Cavity Modal Analysis
- Author
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Szczesny, B., Shinton, I. R. R., and Jones, R. M.
- Subjects
Physics - Accelerator Physics - Abstract
Third harmonic cavities have been designed and fabricated by FNAL to be used at the FLASH/XFEL facility at DESY to minimise the energy spread along the bunches. Modes in these cavities are analysed and the sensitivity to frequency errors are assessed. A circuit model is employed to model the monopole bands. The monopole circuit model is enhanced to include successive cell coupling, in addition to the usual nearest neighbour coupling. A mode matching code is used to facilitate rapid simulations, incorporating fabrication errors. Curves surfaces are approximated by a series of abrupt transitions and the validity of this approach is examined, Comment: Proceedings of 14th International Conference on RF Superconductivity (SRF 2009), 2009, Berlin, Germany
- Published
- 2009