Measurements of light scattering by particles in water

Autor: Georges R. Fournier, Miroslaw Jonasz
Rok vydání: 2007
Předmět:
Zdroj: Light Scattering by Particles in Water
DOI: 10.1016/b978-012388751-1/50004-1
Popis: The light scattering functions of a suspension or aerosol provide a complete description of the incoherent interaction of light with the particles. The separation of the directional structure of light scattering and of the magnitude of light scattering is the basis of numerous models of radiative transfer, such as the Monte Carlo and photon migration models. The average square of the scattering angle appears in the small-angle scattering models of image transmission in turbid media that rely on using the concept of the point spread function. It is found that with suitably miniaturized detectors, the fixed-detectors design permits measurement of the scattering function in several scattering planes at once. Fluctuations of the scattered light power due to fluctuations in the number of the large particles in the scattering volume require signal averaging during a time interval greater than that by a factor of 10 or more. It is observed that time savings realized with a more sensitive detector system are in part offset by the need to average the scattered light. The form of the scattering matrix for media with various degrees of symmetry is also elaborated.
Databáze: OpenAIRE