eprintid: 10199367
rev_number: 12
eprint_status: archive
userid: 699
dir: disk0/10/19/93/67
datestamp: 2024-11-01 14:02:37
lastmod: 2024-11-01 14:02:37
status_changed: 2024-11-01 14:02:37
type: proceedings_section
metadata_visibility: show
sword_depositor: 699
creators_name: Hagen, Charlotte K
creators_name: Lioliou, Grammatiki
creators_name: Roche i Morgo, Oriol
creators_name: Shah, Khushal
creators_name: Zekavat, Amir
creators_name: Astolfo, Alberto
creators_name: Munro, Peter
creators_name: Cipiccia, Silvia
creators_name: Endrizzi, Marco
creators_name: Olivo, Alessandro
title: X-ray micro-computed tomography with amplitude modulated beams (beam tracking, edge illumination): opportunities, challenges, and outlook
ispublished: pub
divisions: UCL
divisions: B04
divisions: F42
note: This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions.
abstract: In recent years, x-ray micro-computed tomography (micro-CT) systems with amplitude modulated beams have gained global interest. These systems feature a modulator, that is, an x-ray opaque mask with periodically spaced apertures, in front of the sample, creating an array of spatially separated beamlets. The approach offers x-ray phase contrast imaging (XPCI), which improves the contrast-to-noise ratio and reveals the presence of sub-resolution inhomogeneities by capturing, respectively, refraction and ultra-small angle scattering (dark field signal) alongside x-ray attenuation. Additionally, the modulator can increase spatial resolution, as the narrow beamlets can transfer higher spatial frequencies without requiring geometric magnification. This brief communication reviews the working principle of the approach and comments on a remaining challenge (relatively long scan times).
date: 2024
date_type: published
publisher: Society of Photo-Optical Instrumentation Engineers (SPIE)
official_url: http://dx.doi.org/10.1117/12.3029040
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2332065
doi: 10.1117/12.3029040
lyricists_name: Hagen, Charlotte
lyricists_id: CKHAG69
actors_name: Hagen, Charlotte
actors_id: CKHAG69
actors_role: owner
full_text_status: public
pres_type: paper
publication: Developments in X-Ray Tomography XV
pagerange: 1-6
event_title: Developments in X-Ray Tomography XV
event_location: San Diego, California, United States
event_dates: 18th-23rd August 2024
book_title: Proceedings of the Developments in X-Ray Tomography XV
editors_name: Müller, Bert
editors_name: Wang, Ge
citation:        Hagen, Charlotte K;    Lioliou, Grammatiki;    Roche i Morgo, Oriol;    Shah, Khushal;    Zekavat, Amir;    Astolfo, Alberto;    Munro, Peter;             ... Olivo, Alessandro; + view all <#>        Hagen, Charlotte K;  Lioliou, Grammatiki;  Roche i Morgo, Oriol;  Shah, Khushal;  Zekavat, Amir;  Astolfo, Alberto;  Munro, Peter;  Cipiccia, Silvia;  Endrizzi, Marco;  Olivo, Alessandro;   - view fewer <#>    (2024)    X-ray micro-computed tomography with amplitude modulated beams (beam tracking, edge illumination): opportunities, challenges, and outlook.                     In: Müller, Bert and Wang, Ge, (eds.) Proceedings of the Developments in X-Ray Tomography XV.  (pp. pp. 1-6).  Society of Photo-Optical Instrumentation Engineers (SPIE)       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10199367/7/Hagen_X-ray%20micro-computed%20tomography%20with%20amplitude%20modulated%20beams%20%28beam%20tracking%2C%20edge%20illumination%29_VoR.pdf