In this.paper we demons.rated a method to recons.ruct vector-valued lattice dis.ortion fields.within nanos.ale crys.als.by optimization of a forward model of multi-reflection Bragg coherent diffraction imaging(MR-BCDI...
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In this.paper we demons.rated a method to recons.ruct vector-valued lattice dis.ortion fields.within nanos.ale crys.als.by optimization of a forward model of multi-reflection Bragg coherent diffraction imaging(MR-BCDI)*** method flexibly accounts.for geometric factors.that aris. when making BCDI meas.rements.is.amenable to efficient invers.on with modern optimization toolkits.and allows.for globally cons.raining a s.ngle image recons.ruction to multiple Bragg peak *** is.enabled by a forward model that emulates.the multiple Bragg peaks.of a MR-BCDI experiment from a s.ngle es.imate of the 3D crys.al *** pres.nt this.forward model,we implement it within the s.ochas.ic gradient des.ent optimization framework,and we demons.rate it with s.mulated and experimental data of nanocrys.als.with inhomogeneous.internal lattice *** find that utilizing a global optimization approach to MR-BCDI affords.a reliable path to convergence of data which is.otherwis. challenging to recons.ruct.
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