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arXiv · 1404.4753

Three-dimensional manipulation of electron beam phase space for seeding soft x-ray free-electron lasers

Chao Feng·Tong Zhang·Haixiao Deng·Zhentang Zhao
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Abstract

In this letter, a simple technique is proposed to induce strong density modulation into the electron beam with small energy modulation. By using the combination of a transversely dispersed electron beam and a wave-front tilted seed laser, three-dimensional manipulation of the electron beam phase space can be utilized to significantly enhance the micro-bunching of seeded free-electron laser schemes, which will improve the performance and extend the short-wavelength range of a single-stage seeded free-electron laser. Theoretical analysis and numerical simulations demonstrate the capability of the proposed technique in a soft x-ray free-electron laser.

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Chao Feng, Tong Zhang, Haixiao Deng, Zhentang Zhao. 2014-04-18. Three-dimensional manipulation of electron beam phase space for seeding soft x-ray free-electron lasers. https://doi.org/10.1103/physrevstab.17.070701

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