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Journal of Biomedical Optics

Optical phantoms with adjustable subdiffusive scattering parameters
Author(s): Philipp Krauter; Steffen Nothelfer; Nico Bodenschatz; Emanuel Simon; Sabrina Stocker; Florian Foschum; Alwin Kienle
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Paper Abstract

A new epoxy-resin-based optical phantom system with adjustable subdiffusive scattering parameters is presented along with measurements of the intrinsic absorption, scattering, fluorescence, and refractive index of the matrix material. Both an aluminium oxide powder and a titanium dioxide dispersion were used as scattering agents and we present measurements of their scattering and reduced scattering coefficients. A method is theoretically described for a mixture of both scattering agents to obtain continuously adjustable anisotropy values g between 0.65 and 0.9 and values of the phase function parameter γ in the range of 1.4 to 2.2. Furthermore, we show absorption spectra for a set of pigments that can be added to achieve particular absorption characteristics. By additional analysis of the aging, a fully characterized phantom system is obtained with the novelty of g and γ parameter adjustment.

Paper Details

Date Published: 16 October 2015
PDF: 10 pages
J. Biomed. Opt. 20(10) 105008 doi: 10.1117/1.JBO.20.10.105008
Published in: Journal of Biomedical Optics Volume 20, Issue 10
Show Author Affiliations
Philipp Krauter, Institut für Lasertechnologien in der Medizin und Messtechnik (Germany)
Steffen Nothelfer, Institut für Lasertechnologien in der Medizin und Messtechnik (Germany)
Nico Bodenschatz, Institut für Lasertechnologien in der Medizin und Messtechnik (Germany)
Emanuel Simon, Institut für Lasertechnologien in der Medizin und Messtechnik (Germany)
Sabrina Stocker, Institut für Lasertechnologien in der Medizin und Messtechnik (Germany)
Florian Foschum, Institut für Lasertechnologien in der Medizin und Messtechnik (Germany)
Alwin Kienle, Institut für Lasertechnologien in der Medizin und Messtechnik (Germany)


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