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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 11. — Photoelectron momentum distributions for more complicated X-ray pulse structures. (a) Simulation of a 300 as FWHM X-ray pulse chirped to 1.2 fs FWHM duration with the same streaking laser field as in figure 9. (b) Simulation of the streaked photoelectron momentum distribution from two 600 as FWHM X-ray pulses separated by a quarter of the streaking laser period. As in figure 9, the photoelectron momentum distribution intensity is normalized to 1. (Online version in colour.)