Back Scattering PCS for Particle Sizing in High Concentrated Suspension
高浓度超细颗粒的后向光子相关光谱测量技术研究

To solve the difficulty of PCS(Photon Correlation Spectroscopy) for online particle sizing in high concentrated suspension,a new back scattering optic was designed and the back-scattering PCS method was proposed through analyzing the influence of the concentration on the PCS.The PCS and BSPCS were systematically tested using small polystyrene latex particles with a wide range of particle concentrations as well as 50nm,100nm and 500nm diameters in suspension.The results show that the multiple-scattering can be suppressed with back scattering PCS and this method suitable to online particle sizing in high concentrated suspension.