Generation and characterization of electron bunches with ramped current profiles in a dual-frequency superconducting linear accelerator.

  title={Generation and characterization of electron bunches with ramped current profiles in a dual-frequency superconducting linear accelerator.},
  author={Philippe Piot and Christopher Behrens and Ch. Gerth and Martin Dohlus and François L{\'e}mery and Daniel Mihalcea and Peter H. Stoltz and Michael Vogt},
  journal={Physical review letters},
  volume={108 3},
We report on the successful experimental generation of electron bunches with ramped current profiles. The technique relies on impressing nonlinear correlations in the longitudinal phase space using a superconducing radio frequency linear accelerator operating at two frequencies and a current-enhancing dispersive section. The produced ~700-MeV bunches have peak currents of the order of a kilo-Ampère. Data taken for various accelerator settings demonstrate the versatility of the method and, in… 

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