NDLI: Field propagation effects and related multibunch instability in multicell capture cavities

Content Provider	IEEE Xplore Digital Library
Author	Ferrario, M. Mosnier, A. Serafini, L. Tazzioli, F. Tessier, J.-M.
Copyright Year	1995
Description	Author affiliation: Infn, Frascati, Italy (Ferrario, M.)
Abstract	Field propagation effects during the filling and re-filling of the cavity are not harmful for a relativistic beam accelerated in a multicell standing wave cavity. On the opposite the beam dynamics of a non relativistic beam injected into a capture cavity can be significantly affected by the interaction with other modes of the fundamental passband, under beam-loading conditions. In fact, the dominant beating provided by the passband mode nearest to the accelerating n-mode introduces fluctuations on the accelerating voltage. The phase slippage occurring in the first cells, between the non relativistic beam and the lower modes, produces an effective enhancement of the shunt impedances, which are usually negligible for a relativistic beam in a well tuned cavity. In some cases simulations show a significant oscillation of the energy spread and transverse normalized emittance along the bunch train. As an example, we have applied our computational models to the beam-loading problem in the Tesla Test Facility (TTF) superconducting capture cavity.
Starting Page	3097
Ending Page	3099
File Size	291220
Page Count	3
File Format	PDF
ISBN	0780329341
DOI	10.1109/PAC.1995.505796
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-05-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Acceleration Particle beams Differential equations Filling Radio frequency Passband Fluctuations Voltage Computational modeling Space charge
Content Type	Text
Resource Type	Article

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