About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Characterization of Materials through High Resolution Coherent Imaging
|
Presentation Title |
Near Atomic Resolution BCDI through Materials Modeling |
Author(s) |
Jason Meziere, Ross Harder, Anastasios Pateras, Richard Sandberg |
On-Site Speaker (Planned) |
Jason Meziere |
Abstract Scope |
When multi-bend achromat lattice upgrades to synchrotrons are completed (such as the Advanced Photon Source upgrade), it will be feasible to sample a much larger region of reciprocal space than ever before. This extra information may enable imaging of strain through Bragg coherent diffraction imaging (BCDI) at near atomic resolution. This work presents an algorithm using molecular dynamics (MD) and minimization techniques to recover atom positions from coherent x-ray diffraction patterns. MD simulations are used to create realistic grains that would occur experimentally in LAMMPS. From this, a diffraction pattern is simulated in Pynx. The algorithm can then reconstruct the given object from only the diffraction pattern. |
Proceedings Inclusion? |
Planned: |