Phys. Rev. ST Accel. Beams 11, 100704 (2008) [12 pages]

Longitudinal wakes of a short magnet, coherent transition radiation, and coherent diffraction radiation for an ultrarelativistic electron bunch

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R. A. Bosch
Synchrotron Radiation Center, University of Wisconsin-Madison, 3731 Schneider Dr., Stoughton, Wisconsin 53589, USA

Received 18 February 2008; revised 18 June 2008; published 31 October 2008

The longitudinal wake is calculated for a bunch of ultrarelativistic electrons that is deflected by a magnet that is much shorter than the formation length of its coherent synchrotron radiation. Using this wake and the Coulomb field of an image bunch, we obtain formulas for the wake of coherent transition radiation. By modeling the coherent diffraction radiation of an iris as the coherent transition radiation from a hollow bunch, we calculate the on-axis longitudinal wake of coherent diffraction radiation for an arbitrary target shape. We also calculate the influence of an upstream magnet’s edge radiation upon the wake.


©2008 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevSTAB.11.100704
DOI: 10.1103/PhysRevSTAB.11.100704
PACS: 41.60.Ap, 52.38.Kd

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