Compact x-ray free-electron laser from a laser-plasma accelerator using a transverse-gradient undulator.

@article{Huang2012CompactXF,
  title={Compact x-ray free-electron laser from a laser-plasma accelerator using a transverse-gradient undulator.},
  author={Zhirong Huang and Yuantao Ding and C. B. Schroeder},
  journal={Physical review letters},
  year={2012},
  volume={109 20},
  pages={204801}
}
Compact laser-plasma accelerators can produce high energy electron beams with low emittance, high peak current but a rather large energy spread. The large energy spread hinders the potential applications for coherent free-electron laser (FEL) radiation generation. We discuss a method to compensate the effects of beam energy spread by introducing a transverse field variation into the FEL undulator. Such a transverse gradient undulator together with a properly dispersed beam can greatly reduce… CONTINUE READING

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