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Extinction of Radiation in Sterically Interacting Systems of Monodisperse Spheres. Part 2: Experimental results
Author(s) -
Kräuter Udo,
Riebel Ulrich
Publication year - 1995
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.19950120305
Subject(s) - extinction (optical mineralogy) , particle (ecology) , steric effects , range (aeronautics) , radiation , diffraction , spheres , optics , particle size , dispersity , physics , molecular physics , materials science , chemical physics , chemistry , geology , composite material , astronomy , polymer chemistry , oceanography , stereochemistry
The Bouguer‐Lambert‐Beer law (BLBL), commonly used to describe the extinction of radiation in disperse systems, is known to be valid in the limit of low concentrations only. In Part [1] it was shown that steric particle‐particle interactions lead to important effects in the range of high particle concentration and two versions of a more general extinction equation including steric interactions were derived for the regimes of fraunhofer diffraction and ray propagation in this part experimental evidence for the effects of steric interactions on the extinction of radiation in suspensions of monodisperse spherical particles is given. Various experiments on light extinction and on ultrasonic extinction are combined to cover a broad range of particle size parameters, mechanisms of particle‐wave interaction and receiver apertures.