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  • PhysRevSTAB.11.092801

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

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Article number092801
<mark>Journal publication date</mark>26/09/2008
<mark>Journal</mark>Physical Review Special Topics: Accelerators and Beams
Issue number9
Volume11
Number of pages6
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

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