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Bragg peak intensity in merged SFX from photosystem I (Chapman et al., 2011 ▸) as a function of inverse resolution (in nm−1) for several different X-ray pulse durations, normalized to the result at 50 fs (Barty et al., 2012 ▸). Fine detail is destroyed first, and the effective pulse duration is set by the time taken to attenuate the high-order Bragg peaks.
