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- B. Salvant, D. Amorim, S.A. Antipov, S. Arsenyev, M.S. Beck, N. Biancacci, O.S. Brüning, J.V. Campelo, E. Carideo, F. Caspers, A. Farricker, A. Grudiev, T. Kaltenbacher, E. Koukovini-Platia, P. Kramer, A. Lasheen, M. Migliorati, N. Mounet, E. Métral, N. Nasr Esfahani, S. Persichelli, B.K. Popovic, T.L. Rijoff, G. Rumolo, E.N. Shaposhnikova, V.G. Vaccaro, C. Vollinger, N. Wang, C. Zannini, B. Zotter
CERN, Meyrin, Switzerland
- D. Amorim
Grenoble-INP Phelma, Grenoble, France
- T. Dalascu
EPFL, Lausanne, Switzerland
- M. Migliorati
Sapienza University of Rome, Rome, Italy
- R. Nagaoka
SOLEIL, Gif-sur-Yvette, France
- V.V. Smaluk
BNL, Upton, Long Island, New York, USA
- B. Spataro
INFN/LNF, Frascati, Italy
- N. Wang
IHEP, Beijing, People’s Republic of China
- S.M. White
ESRF, Grenoble, France
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A reliable impedance model of a particle accelerator can be built by combining the beam coupling impedances of all the components. This is a necessary step to be able to evaluate the machine performance limitations, identify the main contributors in case an impedance reduction is required, and study the interaction with other mechanisms such as optics nonlinearities, transverse damper, noise, space charge, electron cloud, beam-beam (in a collider). The main phases to create a realistic impedance model, and verify it experimentally, will be reviewed, highlighting the main challenges. Some examples will be presented revealing the levels of precision of machine impedance models that have been achieved.
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