eprintid: 1431323
rev_number: 36
eprint_status: archive
userid: 608
dir: disk0/01/43/13/23
datestamp: 2014-06-04 18:38:12
lastmod: 2021-10-04 01:42:56
status_changed: 2016-08-12 11:10:08
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Burdet, N
creators_name: Morrison, GR
creators_name: Huang, X
creators_name: Shi, X
creators_name: Clark, JN
creators_name: Zhang, F
creators_name: Civita, M
creators_name: Harder, R
creators_name: Robinson, IK
title: Observations of artefacts in the x-ray ptychography method
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
divisions: F64
note: Copyright © 2014 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.
abstract: X-ray ptychography, a scanning coherent diffraction imaging method, was used to reconstruct images of a “Siemens star” test pattern with amplitude and phase contrast. While studying how the use of illumination with an increased bandwidth results in clear improvements in the quality of image reconstructions, we found that an artificial change in the overall distance scale factor of the algorithm leads to a systematic response in the image, which is reproduced with an incorrect number of spokes. This pathology is explained by the conflict between the length scales set by the scan and by the diffraction patterns on the detector.
date: 2014-05-05
official_url: http://dx.doi.org/10.1364/OE.22.010294
vfaculties: VMPS
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_source: WoS-Lite
elements_id: 950130
doi: 10.1364/OE.22.010294
lyricists_name: Morrison, Graeme
lyricists_name: Robinson, Ian
lyricists_id: GRMOR53
lyricists_id: IKROB22
full_text_status: public
publication: Optics Express
volume: 22
number: 9
pagerange: 10294 - 10303
issn: 1094-4087
citation:        Burdet, N;    Morrison, GR;    Huang, X;    Shi, X;    Clark, JN;    Zhang, F;    Civita, M;         ... Robinson, IK; + view all <#>        Burdet, N;  Morrison, GR;  Huang, X;  Shi, X;  Clark, JN;  Zhang, F;  Civita, M;  Harder, R;  Robinson, IK;   - view fewer <#>    (2014)    Observations of artefacts in the x-ray ptychography method.                   Optics Express , 22  (9)   10294 - 10303.    10.1364/OE.22.010294 <https://doi.org/10.1364/OE.22.010294>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1431323/1/Robinson_Nico_OptExp_submit.pdf