Quantitative Mass Density Image Reconstructed from the Complex X-Ray Refractive Index

We demonstrate a new analytical X-ray computed tomography technique for visualizing and quantifying the mass density of materials comprised of low atomic number elements with unknown atomic ratios. The mass density was obtained from the experimentally observed ratio of the imaginary and real parts o...

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Published in:PloS one 2015-06, Vol.10 (6), p.e0131401-e0131401
Main Authors: Mukaide, Taihei, Iida, Atsuo, Watanabe, Masatoshi, Takada, Kazuhiro, Noma, Takashi
Format: Article
Language:English
Subjects:
Applied physics
Atomic properties
Attenuation coefficients
Computation
Computed tomography
Density
Empirical analysis
Fiber optic equipment
Hydrogen
Image reconstruction
Medical imaging
Microbeams
Models, Theoretical
Nanomaterials
Optics
Physical properties
Polymers
Polymethyl methacrylate
Refractive index
Refractivity
Tomography
Tomography, X-Ray Computed - methods
X rays
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cited_by cdi_FETCH-LOGICAL-c692t-50da72be4a9f798730e892f66eea5dc9e9315980ba4474775c7a77a3f86549bd3
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creator Mukaide, Taihei
Iida, Atsuo
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Noma, Takashi
description We demonstrate a new analytical X-ray computed tomography technique for visualizing and quantifying the mass density of materials comprised of low atomic number elements with unknown atomic ratios. The mass density was obtained from the experimentally observed ratio of the imaginary and real parts of the complex X-ray refractive index. An empirical linear relationship between the X-ray mass attenuation coefficient of the materials and X-ray energy was found for X-ray energies between 8 keV and 30 keV. The mass density image of two polymer fibers was quantified using the proposed technique using a scanning-type X-ray microbeam computed tomography system equipped with a wedge absorber. The reconstructed mass density agrees well with the calculated one.
doi_str_mv 10.1371/journal.pone.0131401
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subjects Applied physics
Atomic properties
Attenuation coefficients
Computation
Computed tomography
Density
Empirical analysis
Fiber optic equipment
Hydrogen
Image reconstruction
Medical imaging
Microbeams
Models, Theoretical
Nanomaterials
Optics
Physical properties
Polymers
Polymethyl methacrylate
Refractive index
Refractivity
Tomography
Tomography, X-Ray Computed - methods
X rays
title Quantitative Mass Density Image Reconstructed from the Complex X-Ray Refractive Index
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