DiffSim provides an atomistic approach to efficiently simulate Bragg coherent x-ray diffraction imaging (BCDI) diffraction patterns by factorising and eliminating certain redundancies in the conventional approach. The method used is able to reduce the computation time by several orders of magnitude without compromising the recovered phase information and therefore enables feasible atomistic simulations on nanoscale crystals with arbitrary lattice distortions.

Please cite the following article when using Diffsim in published work:

Ahmed Mokhtar, David Serban and Marcus Newton, Simulation of Bragg coherent diffraction imaging, J. Phys. Commun. Volume 6, 055003 (2022)

DiffSim requires:

• Python >= 3.7
• Numba >= 0.58.1
• NumPy >= 1.25.0
• scipy
• mpi4py

Installation via pip:

$ pip install diffsim

Please send any bugs, problems, and proposals to: [email protected] or visit: http://github.com/bonsudev/diffsim

Example scripts are available in the examples folder.

🔧 Minor bug fixes.

✨ Refactored code for speed improvements.
✨ Added attenuation and refraction corrections.
🔧 Minor bug fixes.

✨ First major release. 

GNU GPLv3