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
@article{arxiv.0910.1298,
title = {Third Harmonic Cavity Modal Analysis},
author = {B. Szczesny and I. R. R. Shinton and R. M. Jones},
journal= {arXiv preprint arXiv:0910.1298},
year = {2009}
}
Comments
Proceedings of 14th International Conference on RF Superconductivity (SRF 2009), 2009, Berlin, Germany