Optimization of single-step tapering amplitude and energy detuning for high-gain FELs

Li Heting; Jia Qika

Optimization of single-step tapering amplitude and energy detuning for high-gain FELs

Accelerator Physics 2014-03-03 v1

Authors: Li Heting , Jia Qika

Abstract

We put forward a method to optimize the step-tapering amplitude of undulator strength and initial energy detuning of electron beam with the goal of maximizing the saturation power of high-gain FELs, based on the physics of longitudinal electron beam phase space. Using the FEL simulation code GENESIS, we numerically demonstrate the accuracy of the estimation for parameters corresponding to the linac coherent light source and the Tesla test facility.

Keywords

high-gain fels step-tapering energy detuning saturation power undulator strength genesis simulation

Cite

@article{arxiv.1402.7123,
  title  = {Optimization of single-step tapering amplitude and energy detuning for high-gain FELs},
  author = {Li Heting and Jia Qika},
  journal= {arXiv preprint arXiv:1402.7123},
  year   = {2014}
}

Comments

4 pages,3figures,1 table

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