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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
Journal publication date26/09/2008
JournalPhysical Review Special Topics: Accelerators and Beams
Number of pages6
Original languageEnglish


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