Persistent wakefields associated with waveguide damping of higher order modes

By means of an analytic model and numerical simulations we demonstrate that the wake of a waveguide damped cavity contains a persistent component which decays as t/sup -3/2/ and thus is dominant at sufficiently large values of t. Because there are scenarios for which the effect gives rise to unaccep...

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Bibliographic Details
Main Authors: Kroll, N.M., Xintian Lin
Format: Conference Proceeding
Language:English
Subjects:
Cutoff frequency
Damping
Dielectrics
Linear accelerators
Numerical models
Optical reflection
Particle accelerators
Particle beams
Resonant frequency
Waveguide components
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Summary:By means of an analytic model and numerical simulations we demonstrate that the wake of a waveguide damped cavity contains a persistent component which decays as t/sup -3/2/ and thus is dominant at sufficiently large values of t. Because there are scenarios for which the effect gives rise to unacceptable beam instability, it cannot be ignored, but it seems likely that such an outcome can be avoided with proper design.< >
DOI:10.1109/PAC.1993.309681