Ph. Kaye, SPATIAL LIGHT-SCATTERING ANALYSIS AS A MEANS OF CHARACTERIZING AND CLASSIFYING NONSPHERICAL PARTICLES, Measurement science & technology, 9(2), 1998, pp. 141-149
The manner in which a particle scatters incident light is a function o
f the particle's shape, its size, its structure and its orientation wi
th respect to the illumination direction, as well as to the wavelength
and polarization state of the light. The spatial intensity distributi
on of scattered light thus contains information by which the particle
may often be classified or even identified. This paper briefly reviews
the development of spatial light scattering analysis as an analytical
and monitoring tool now finding application in areas as diverse as en
vironmental monitoring, aerosol and hydrosol research, microbiology an
d fine-powder characterization. The paper concludes with a practical e
xample of the use of spatial scattering analysis to achieve real-time
discrimination of a specific particle type, namely airborne asbestos f
ibres.