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. 2019 Apr 1;377(2145):20180386. doi: 10.1098/rsta.2018.0386

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© 2019 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 2. — (a) Simulated longitudinal phase space (top) and current profile (bottom) of the nonlinearly compressed electron beam. (b) Percentage of shots with a given number of SASE spikes in the nonlinearly compressed electron beam. (c) Examples of measured single-spike spectra [30]. (Online version in colour.)