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About this Abstract
Meeting	2025 TMS Annual Meeting & Exhibition
Symposium	Characterization of Materials through High Resolution Coherent Imaging
Presentation Title	Rapid Reconstruction of the Full Strain Tensor via Coupled Phase Retrieval With Multipeak Bragg Coherent Diffraction Imaging
Author(s)	J. Nicholas Porter, Yueheng Zhang, Ross J Harder, Barbara Frosik, Wonsuk Cha, Yuan Gao, Garth Williams, Joshua Miller, Nash Karrington, Andres Herrera, Stephan Hruszkewycz, Anthony Rollett, Richard L. Sandberg
On-Site Speaker (Planned)	J. Nicholas Porter
Abstract Scope	Bragg coherent diffraction imaging (BCDI) provides nanometer scale three-dimensional images of crystalline materials. Measuring multiple peaks or reflections from BCDI allows for highly consistent reconstruction of the full strain field within nano- and microcrystals. However, the computational cost of such reconstructions will not be compatible with the increased coherent x-ray flux at upgraded synchrotron sources. We have developed a multipeak phase retrieval technique for BCDI, based on serial-constrained optimization (SCO), designed to minimize both the time and memory required to perform reconstructions. We show that our new method rapidly and consistently reconstruct experimentally obtained diffraction patterns from crystals with varying levels of strain.
Proceedings Inclusion?	Planned:
Keywords	Nanotechnology, Thin Films and Interfaces,

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Physics-Informed Self-Supervised Learning of Structural Morphology Imaged by Scanning X-Ray Diffraction Microscopy

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