Free Electron Laser Supermodes for Bunches with Longitudinal Energy-Position Correlation*
نویسنده
چکیده
The longitudinal phase space of an electron bunch in a storage ring is usually described by the bunch length c, and the energy spread cr,. The equilibrium values of these quantities are determined by a balance of damping and quantum excitation stemming from the emission of synchrotron radiation. However, the presence of longitudinal wake fields lead to a correlationbetween energy and position in the bunch, because the trailing particles loose energy due to the wake field the leading particles produce.
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