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Particle size analysis in a turbid media with a single-fiber, optical probe while using a visible spectrometer

United States Patent

December 9, 2003
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
Apparatus and method for measuring scatterer size in a dense media with only a single fiber for both light delivery and collection are disclosed. White light is used as a source and oscillations of the detected light intensities are measured as a function of wavelength. The maximum and minimum of the oscillations can be used to determine scatterer size for monodisperse distributions of spheres when the refractive indices are known. In addition several properties of the probe relevant to tissue diagnosis are disclosed including the effects of absorption, a broad distribution of scatterers, and the depth probed.
Canpolat; Murat (Plantation, FL), Mourant; Judith R. (White Rock, NM)
Regents of the University of California (Oakland, CA)
09/ 888,799
June 25, 2001
GOVERNMENT RIGHTS This invention was made with Government support under Contract Number W-7405-ENG-36 awarded by the United States Department of Energy to The Regents of the University of California. The Government has certain rights in the invention.