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1篇 您的检索式：作者名="Travis D.Frazer"

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		题名	作者	年代	出处	被引量
	1	Concurrent multi-peak Bragg coherent x-ray diffraction imaging of 3D nanocrystal lattice displacement via global optimization显示文摘In this paper we demonstrated a method to reconstruct vector-valued lattice distortion fields within nanoscale crystals by optimization of a forward model of multi-reflection Bragg coherent diffraction imaging(MR-BCDI)data.The method flexibly accounts for geometric factors that arise when making BCDI measurements,is amenable to efficient inversion with modern optimization toolkits,and allows for globally constraining a single image reconstruction to multiple Bragg peak measurements.This is enabled by a forward model that emulates the multiple Bragg peaks of a MR-BCDI experiment from a single estimate of the 3D crystal sample.We present this forward model,we implement it within the stochastic gradient descent optimization framework,and we demonstrate it with simulated and experimental data of nanocrystals with inhomogeneous internal lattice displacement.We find that utilizing a global optimization approach to MR-BCDI affords a reliable path to convergence of data which is otherwise challenging to reconstruct.	Siddharth Maddali Travis D.Frazer Nazar Delegan Katherine J.Harmon Sean E.Sullivan Marc Allain Wonsuk Cha Alan Dibos Ishwor Poudyal Saugat Kandel Youssef S.G.Nashed F.Joseph Heremans Hoydoo You Yue Cao Stephan O.Hruszkewycz	2023	npj Computational Materials2023，，1：	0

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