eprintid: 1448709
rev_number: 39
eprint_status: archive
userid: 608
dir: disk0/01/44/87/09
datestamp: 2014-09-23 08:51:35
lastmod: 2021-09-19 23:56:48
status_changed: 2014-09-23 08:51:35
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Cipiccia, S
creators_name: Vittoria, FA
creators_name: Weikum, M
creators_name: Olivo, A
creators_name: Jaroszynski, DA
title: Inclusion of coherence in Monte Carlo models for simulation of x-ray phase contrast imaging
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F42
keywords: general science
note: This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OE.22.023480. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
abstract: Interest in phase contrast imaging methods based on electromagnetic wave coherence has increased significantly recently, particularly at X-ray energies. This is giving rise to a demand for effective simulation methods. Coherent imaging approaches are usually based on wave optics, which require significant computational resources, particularly for producing 2D images. Monte Carlo (MC) methods, used to track individual particles/photons for particle physics, are not considered appropriate for describing coherence effects. Previous preliminary work has evaluated the possibility of incorporating coherence in Monte Carlo codes. However, in this paper, we present the implementation of refraction in a model that is based on time of flight calculations and the Huygens-Fresnel principle, which allow reproducing the formation of phase contrast images in partially and fully coherent experimental conditions. The model is implemented in the FLUKA Monte Carlo code and X-ray phase contrast imaging simulations are compared with experiments and wave optics calculations.
date: 2014-09-18
publisher: OSA
official_url: http://dx.doi.org/10.1364/OE.22.023480
vfaculties: VENG
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
article_type_text: Article
verified: verified_manual
elements_source: Manually entered
elements_id: 975598
doi: 10.1364/OE.22.023480
lyricists_name: Cipiccia, Silvia
lyricists_name: Olivo, Alessandro
lyricists_name: Vittoria, Fabio
lyricists_id: SCIPI67
lyricists_id: AOLIV86
lyricists_id: VITTO07
full_text_status: public
publication: Optics Express
volume: 22
number: 19
place_of_pub: USA
pagerange: 23480 - 23488
pages: 9
event_location: USA
issn: 1094-4087
citation:        Cipiccia, S;    Vittoria, FA;    Weikum, M;    Olivo, A;    Jaroszynski, DA;      (2014)    Inclusion of coherence in Monte Carlo models for simulation of x-ray phase contrast imaging.                   Optics Express , 22  (19)   23480 - 23488.    10.1364/OE.22.023480 <https://doi.org/10.1364/OE.22.023480>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1448709/1/Cipiccia_OptExp2014_revised.pdf