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Figure 4
Top: diffracted flux from a crystal, proportional to the integrated intensity in Bragg peaks, versus dose calculated for a Gaussian beam and for a beam with a top-hat (rectangular) profile of width equal to the Gaussian FWHM, for a fixed crystal orientation during irradiation. The local decay of diffraction with dose is assumed to be exponential with a half-dose D1/2,local equal to that measured with a top-hat profile beam. Bottom: diffraction-weighted dose DWD* (Zeldin, Brockhauser et al., 2013BB54) and DWD (as revised here) versus normalized dose for a Gaussian beam and a fixed crystal.

IUCrJ
Volume 4| Part 6| November 2017| Pages 785-794
ISSN: 2052-2525