Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/198684
Type: Artigo de periódico
Title: Exact Analytic Reconstruction In X-ray Fluorescence Ct And Approximated Versions.
Author: Miqueles, Eduardo X
De Pierro, Alvaro R
Abstract: X-ray fluorescence computed tomography (XFCT) is a relatively new synchrotron-based imaging modality aiming at reconstructing the distribution of nonradiative elements within a sample irradiated with high-intensity monochromatic x-rays. In a recent paper La Rivière (2004 Phys. Med. Biol. 49 2391-405) presented an approximated inversion method based on reducing the problem to the inversion of the exponential radon transform. In this paper we compare La Rivière's results with recently derived 'exact' analytic formulae for the generalized attenuated radon transform. We present numerical experiments with real and simulated data.
Subject: Algorithms
Computer Simulation
Fluorescence
Fourier Analysis
Image Processing, Computer-assisted
Models, Theoretical
Phantoms, Imaging
Radon
Synchrotrons
Tomography, Emission-computed, Single-photon
Tomography, X-ray Computed
Rights: fechado
Identifier DOI: 10.1088/0031-9155/55/4/007
Address: http://www.ncbi.nlm.nih.gov/pubmed/20090180
Date Issue: 2010
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File SizeFormat 
pmed_20090180.pdf900.88 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.