Pavlov, Konstantin M

Punegov, Vasily I

Morgan, Kaye S

Schmalz, Gerd

Paganin, David M

2017

A deterministic variant of Bragg Coherent Diffraction Imaging is introduced in its kinematical approximation, for X-ray scattering from an imperfect crystal whose imperfections span no more than half of the volume of the crystal. This approach provides a unique analytical reconstruction of the object's structure factor and displacement fields from the 3D diffracted intensity distribution centred around any particular reciprocal lattice vector. The simple closed-form reconstruction algorithm, which requires only one multiplication and one Fourier transformation, is not restricted by assumptions of smallness of the displacement field. The algorithm performs well in simulations incorporating a variety of conditions, including both realistic levels of noise and departures from ideality in the reference (i.e. imperfection-free) part of the crystal.

Scientific Reports, v.7, p. 1-15

2045-2322

https://hdl.handle.net/1959.11/21081

Nature Publishing Group

Deterministic Bragg Coherent Diffraction Imaging

Journal Article

Publication