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arXiv · 1305.0593

High brightness and fully coherent x-ray pulses from XFELO seeded high-gain FEL schemes

Haixiao Deng·Chao Feng
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Abstract

The successful operation of the hard x-ray self-seeding experiment at the LCLS opens the era of fully coherent hard x-ray free electron lasers (FELs). However, the shot-to-shot radiation fluctuation is still a serious issue. In this paper, high-gain, single-pass x-ray FEL schemes seeded by the narrow bandwidth radiation signal from an x-ray FEL oscillator were proposed and investigated, which are expected to generate high brightness, fully coherent and stable x-ray pulse. A simple model has been developed to figure out the temporal and the spectral structures of the output pulses in x-ray FEL oscillator. And options using two synchronized accelerators and using one accelerator were considered, respectively.

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Haixiao Deng, Chao Feng. 2013-05-02. High brightness and fully coherent x-ray pulses from XFELO seeded high-gain FEL schemes. https://arxiv.org/abs/1305.0593

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