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Continuous measurement of the heat‐induced changes in the optical properties (at 1,064 nm) of rat liver
Author(s) -
Pickering John W.,
Posthumus Paul,
van Gemert Martin J. C.
Publication year - 1994
Publication title -
lasers in surgery and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 112
eISSN - 1096-9101
pISSN - 0196-8092
DOI - 10.1002/lsm.1900150208
Subject(s) - anisotropy , collimated light , scattering , attenuation coefficient , absorption (acoustics) , materials science , radiative transfer , scattering coefficient , integrating sphere , optics , molecular physics , analytical chemistry (journal) , chemistry , laser , physics , composite material , chromatography
The radiative transfer optical properties (absorption coefficient, scattering coefficient, and anisotropy of scattering) of slowly heated rat liver have been measured at 1,064 nm. Continuous measurements were made using double‐integrating spheres and collimated illumination of the sample for up to 5,000 seconds heating with equilibrium temperatures of 48°, 52°, and 58°C. Generally, the scattering increased, and the absorption and anistropy decreased at rates dependent on the heating temperatures. However, there was a large variability between samples. © 1994 Wiley‐Liss, Inc.