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Anticrab cavities for the removal of spurious vertical bunch rotations caused by crab cavities

Research output: Contribution to journalJournal article


Article number092801
<mark>Journal publication date</mark>26/09/2008
<mark>Journal</mark>Physical Review Special Topics: Accelerators and Beams
Issue number9
Number of pages6
<mark>Original language</mark>English


Many particle accelerators are proposing the use of crab cavities to correct for accelerator crossing angles or for the production of short bunches in light sources. These cavities produce a rotation to the bunch in a well-defined polarization plane. If the plane of the rotation does not align with the horizontal axis of the accelerator, the bunch will receive a small amount of spurious vertical bunch rotation. For accelerators with small vertical beam sizes and large beam-beam effects, this can cause significant unwanted effects. In this paper we propose the use of a 2nd smaller crab cavity in the vertical plane in order to cancel this effect and investigate its use in numerical simulations

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© 2008 The American Physical Society