Microbunching instability characterization via temporally modulated laser pulses

  title={Microbunching instability characterization via temporally modulated laser pulses},
  author={A. D. Brynes and Iwan J. A. G. Akkermans and Enrico Massimiliano Allaria and Laura Badano and Seth Brussaard and Miltcho B. Danailov and Alexander Demidovich and Giovanni De Ninno and Luca Giannessi and Najmeh Sadat Mirian and Giuseppe Penco and G. Perosa and Primo{\vz} Rebernik Ribi{\vc} and El{\'e}onore Roussel and Irwan D. Setija and Pw Peter Smorenburg and S. Spampinati and Carlo Spezzani and Mauro Gaetano Trov{\`o} and Peter H. Williams and Andrzej Wolski and Simone Di Mitri},
  journal={arXiv: Accelerator Physics},
High-brightness electron bunches, such as those generated and accelerated in free-electron lasers (FELs), can develop small-scale structure in the longitudinal phase space. This causes variations in the slice energy spread and current profile of the bunch which then undergo amplification, in an effect known as the microbunching instability. By imposing energy spread modulations on the bunch in the low-energy section of an accelerator, using an undulator and a modulated laser pulse in the centre… 
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