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arXiv · 1504.06945

Generate Uniform Transverse Distributed Electron Beam along a Beam Line

Y. Jiao·X. Cui
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Abstract

It has been reported that transverse distribution shaping can help to further enhance the energy extraction efficiency in a terawatt, tapered X-ray free-electron laser. Thus, methods of creating and keeping almost uniform transverse distributed (UTD) beam within undulators are required. This study shows that a UTD electron beam can be generated within evenly distributed drift sections where undulators can be placed, by means of octupoles and particular optics. A concrete design is presented, and numerical simulations are done to verify the proposed method.

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Y. Jiao, X. Cui. 2015-04-27. Generate Uniform Transverse Distributed Electron Beam along a Beam Line. https://doi.org/10.1088/1674-1137%2F39%2F11%2F117001

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