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arXiv · 1310.7521

Electron Pulse Compression with a Practical Reflectron Design for Ultrafast Electron Diffraction

Yihua Wang·Nuh Gedik
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Abstract

Ultrafast electron diffraction (UED) is a powerful method for studying time-resolved structural changes. Currently, space charge induced temporal broadening prevents obtaining high brightness electron pulses with sub-100 fs durations limiting the range of phenomena that can be studied with this technique. We review the state of the the art of UED in this respect and propose a practical design for reflectron based pulse compression which utilizes only electro-static optics and has a tunable temporal focal point. Our simulation shows that this scheme is capable of compressing an electron pulse containing 100,000 electrons with 60:1 temporal compression ratio.

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Yihua Wang, Nuh Gedik. 2013-10-28. Electron Pulse Compression with a Practical Reflectron Design for Ultrafast Electron Diffraction. https://doi.org/10.1109/jstqe.2011.2112339

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