Seeded FEL Microbunching Experiments at the UCLA Neptune Laboratory

نویسندگان

  • S. Ya. Tochitsky
  • P. Musumeci
  • J. B. Rosenzweig
  • C. Joshi
  • S. C. Gottschalk
چکیده

Seeded high-gain FELs, which can generate very powerful radiation pulses in a relatively compact undulator and simultaneously modulate the electron beam longitudinally on the seed wavelength, are important tools for the advanced accelerator development. A single-pass 0.5-9 THz FEL amplifier-buncher driven by a regular photoinjector is being built at the UCLA Neptune Laboratory. FEL interactions at 340 μm (1 THz) are considered for the first experiment, since time-resolved measurements of longitudinal current distribution of the bunched beam using the RF deflecting cavity are possible. A design of a 0.2-2.0 μm FEL using the same undulators is presented. In this case the FEL is driven by a high-peak current beam from the laser-plasma accelerator tunable in the 100-300 MeV range.

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تاریخ انتشار 2010