Research Papers: General

Optical phantoms with adjustable subdiffusive scattering parameters

[+] Author Affiliations
Philipp Krauter, Steffen Nothelfer, Nico Bodenschatz, Emanuel Simon, Sabrina Stocker, Florian Foschum, Alwin Kienle

Institut für Lasertechnologien in der Medizin und Meßtechnik, Helmholtzstraße 12, D-89081, Germany

J. Biomed. Opt. 20(10), 105008 (Oct 16, 2015). doi:10.1117/1.JBO.20.10.105008
History: Received June 19, 2015; Accepted August 24, 2015
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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.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Philipp Krauter ; Steffen Nothelfer ; Nico Bodenschatz ; Emanuel Simon ; Sabrina Stocker, et al.
"Optical phantoms with adjustable subdiffusive scattering parameters", J. Biomed. Opt. 20(10), 105008 (Oct 16, 2015). ; http://dx.doi.org/10.1117/1.JBO.20.10.105008


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