eprintid: 10197178
rev_number: 9
eprint_status: archive
userid: 699
dir: disk0/10/19/71/78
datestamp: 2024-09-18 07:54:01
lastmod: 2024-09-18 07:54:01
status_changed: 2024-09-18 07:54:01
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Lioliou, Grammatiki
creators_name: Roche i Morgó, Oriol
creators_name: Astolfo, Alberto
creators_name: Zekavat, Amir Reza
creators_name: Endrizzi, Marco
creators_name: Bate, David
creators_name: Cipiccia, Silvia
creators_name: Olivo, Alessandro
creators_name: Hagen, Charlotte
title: Recent developments in fly scan methods for phase and multi-contrast x-ray micro-CT based on amplitude modulated beams
ispublished: pub
divisions: UCL
divisions: B04
divisions: F42
keywords: X-ray micro-computed tomography, Phase contrast imaging, Fly scans, Rapid scanning, High-throughput scanning, Methods development
note: © 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/).
abstract: 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.
date: 2024-06
date_type: published
publisher: Elsevier BV
official_url: http://dx.doi.org/10.1016/j.tmater.2024.100034
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2308006
doi: 10.1016/j.tmater.2024.100034
lyricists_name: Endrizzi, Marco
lyricists_name: Hagen, Charlotte
lyricists_id: MENDR57
lyricists_id: CKHAG69
actors_name: Hagen, Charlotte
actors_id: CKHAG69
actors_role: owner
full_text_status: public
publication: Tomography of Materials and Structures
volume: 5
article_number: 100034
issn: 2949-673X
citation:        Lioliou, Grammatiki;    Roche i Morgó, Oriol;    Astolfo, Alberto;    Zekavat, Amir Reza;    Endrizzi, Marco;    Bate, David;    Cipiccia, Silvia;         ... Hagen, Charlotte; + view all <#>        Lioliou, Grammatiki;  Roche i Morgó, Oriol;  Astolfo, Alberto;  Zekavat, Amir Reza;  Endrizzi, Marco;  Bate, David;  Cipiccia, Silvia;  Olivo, Alessandro;  Hagen, Charlotte;   - view fewer <#>    (2024)    Recent developments in fly scan methods for phase and multi-contrast x-ray micro-CT based on amplitude modulated beams.                   Tomography of Materials and Structures , 5     , Article 100034.  10.1016/j.tmater.2024.100034 <https://doi.org/10.1016/j.tmater.2024.100034>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10197178/1/Hagen_1-s2.0-S2949673X24000111-main.pdf