TY  - JOUR
N2  - Beam tracking and edge illumination are phase contrast imaging techniques that rely on amplitude modulated x-ray beams to generate sensitivity to refraction and scattering. While each technique has its advantage (?single shot? three-contrast imaging in beam tracking; the ability to work with relatively large pixels in edge illumination), they also share a common drawback, namely that the modulator shields parts of the sample and, thus, prevents those areas from contributing to the image (under-sampling). Sample stepping, by which frames are acquired with the sample in a different position relative to the modulator (sometimes referred to as ?dithering?) can produce well-sampled images. However, in computed tomography (CT), stepping must be performed at each rotation angle, enforcing step-and-shoot acquisitions and leading to long scan times. To enable faster acquisitions, fly scan compatible scanning schemes based on ?roto-translating? the sample in the modulated x-ray beam were recently developed. This article reviews these schemes and provides practical guidance for their implementation.
PB  - Elsevier BV
Y1  - 2024/06//
VL  - 5
A1  - Lioliou, Grammatiki
A1  - Roche i Morgó, Oriol
A1  - Astolfo, Alberto
A1  - Zekavat, Amir Reza
A1  - Endrizzi, Marco
A1  - Bate, David
A1  - Cipiccia, Silvia
A1  - Olivo, Alessandro
A1  - Hagen, Charlotte
SN  - 2949-673X
N1  - © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
ID  - discovery10197178
AV  - public
JF  - Tomography of Materials and Structures
UR  - http://dx.doi.org/10.1016/j.tmater.2024.100034
KW  - X-ray micro-computed tomography
KW  -  Phase contrast imaging
KW  -  Fly scans
KW  -  Rapid scanning
KW  -  High-throughput scanning
KW  -  Methods development
TI  - Recent developments in fly scan methods for phase and multi-contrast x-ray micro-CT based on amplitude modulated beams
ER  -