Speaker
Gianluca Geloni
(European XFEL GmbH)
Description
We review the theory of optical klystrons with SASE FEL applications in mind. Previous theories miss terms in the power gain factor that cannot be neglected, and we illustrate differences between the previously known analytical expressions, new ones discussed here, and numerical calculations. We then consider the use of optical klystrons for electron energy-spread and radiation coherence-time diagnostics purposes.
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Primary author
Gianluca Geloni
(European XFEL GmbH)
Co-authors
Marc Guetg
(Deutsches Elektronen-Synchrotron)
Evgeny Schneidmiller
(Deutsches Elektronen-Synchrotron)
Svitozar Serkez
(European XFEL GmbH)
