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  • Open Access

High-efficiency absorber for damping transverse wakefields

A. Novokhatski*, J. Seeman, and S. Weathersby

  • SLAC, Stanford University, 2575 Sand Hill Road, Menlo Park, California 94025, USA

  • *Electronic address: novo@slac.stanford.edu

Phys. Rev. ST Accel. Beams 10, 042003 – Published 26 April, 2007

DOI: https://doi.org/10.1103/PhysRevSTAB.10.042003

Abstract

Transverse wakefields generated by intense beams may propagate long distances in a vacuum chamber and dissipate power in different shielded elements such as bellows, vacuum valves, or vacuum pumps. Induced heating in these elements may be high enough to deteriorate vacuum conditions. We have developed a broadband water-cooled bellows absorber to capture and damp these harmful transverse fields without impacting the longitudinal beam impedance. Experimental results at the PEP-II SLAC B-factory demonstrate a high efficiency for this device. This absorber may be useful in super B-factories, the International Linear Collider, the Large Hadron Collider, or synchrotron light sources.

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