Multiple light scattering in laser particle sizing

Multiple light scattering is an important issue in modern laser diffraction spectrometry. Most laser particle sizers do not account for multiple light scattering in;a disperse medium under investigation. This causes an undere stimation of the particle sizes in the case of high concentrations of scatt erers, The retrieval accuracy is improved if the measured data are processe d with multiple-scattering algorithms that treat multiple Light scattering in a disperse medium. We evaluate the influence of multiple light scatterin g on light transmitted by scattering layers. The relationships among differ ent theories to account for multiple light scattering in laser particle siz ing are considered. (C) 2001 Optical Society of America.