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- I.V. Agapov, G. Geloni
XFEL. EU, Hamburg, Germany
- O.V. Chubar
BNL, Upton, Long Island, New York, USA
- M. Scheer, M. Titze
HZB, Berlin, Germany
- N.V. Smolyakov, S.I. Tomin
NRC, Moscow, Russia
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Calculating spontaneous radiation emission from long undulators such as those present in the European XFEL, being background to FEL radiation, is still important for several diagnostics and science cases. For realistic setups, and including effects of electron beam focusing, emittance and energy spread in the electron beam, these calculations should be performed numerically. We present these calculations for several electron beam and undulator parameters performed by various codes. Sensitivity of different spontaneous radiation characteristics, in various collection schemes, to the electron beam and undulator magnetic field parameters is studied
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