Energy spread extraction and processing from the kicked beam centroid motion in electron storage rings

The energy spread of the electron beam in the storage ring is one of the most important parameters that define the linear and nonlinear beam dynamics in the storage ring. It is especially important for advanced electron storage rings operating in femto-slicing or low alpha operation modes where the dispersive effects are the essential part of the beam physics. In this paper the beam rms energy spread measurement based on the analysis of transverse decoherence signal of kicked beam in electron storage rings is studied. The numerical results based on particle tracking simulation for CANDLE project and SLS storage rings are discussed.