Approximated Expressions for the Coherent Synchrotron Radiation Effect in Bending Magnets

Donish Khan, Tor Raubenheimer, Schaa, Volker RW (Ed.), Carlsten, Bruce (Ed.), Bishofberger, Kip (Ed.)
In this paper, we describe the development of simplified analytic expressions for the Coherent Synchrotron Radiation's (CSR) root-mean-square induced energy spread, typically found in the bending magnets of short bunch-length charged particle accelerators. The expressions are derived for a Gaussian longitudinal bunch distribution and compared with the full-rigor CSR wakefield integral expressions while entering, traversing and exiting a bending magnet. The validity of the expressions are then
more » ... ressions are then tested against ELEGANT with the simulation of an unchirped beam traveling across a bending magnet into a drift section, and the second stage bunch compressor (BC2) of the proposed LCLS-II beamline.
doi:10.18429/jacow-fel2017-tup028 fatcat:tcta7jpebva5hlff4onqqn72nq