Evaluation of influence of multiple scattering effect in light-scattering-based applications

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	Evaluation of influence of multiple scattering effect in light-scattering-based applications
	Xu SH(徐升华); Sun ZW(孙祉伟)
刊名	Chinese Physics Letters
	2007
通讯作者邮箱	sunzw@imech.ac.cn
卷号	24 期号:6 页码:1763-1766
关键词	T-Matrix Method Colloidal Stability Turbidity Measurement Microscopic Approach Rate Constants Coagulation Index
ISSN号	0256-307X
通讯作者	Sun, ZW (reprint author), Chinese Acad Sci, Inst Mech, NML, Beijing 100080, Peoples R China.
中文摘要	The extinction cross sections of a system containing two particles are calculated by the T-matrix method, and the results are compared with those of two single particles with single-scattering approximation. The necessity of the correction of the refractive indices of water and polystyrene for different incident wavelengths is particularly addressed in the calculation. By this means, the volume fractions allowed for certain accuracy requirements of single-scattering approximation in the light scattering experiment can be evaluated. The volume fractions calculated with corrected refractive indices are compared with those obtained with fixed refractive indices which have been rather commonly used, showing that fixed refractive indices may cause significant error in evaluating multiple scattering effect. The results also give a simple criterion for selecting the incident wavelength and particle size to avoid the 'blind zone' in the turbidity measurement, where the turbidity change is insensitive to aggregation of two particles.
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	T-MATRIX METHOD ; COLLOIDAL STABILITY ; TURBIDITY MEASUREMENT ; MICROSCOPIC APPROACH ; RATE CONSTANTS ; COAGULATION ; INDEX
收录类别	SCI
语种	英语
WOS记录号	WOS:000247045400091
公开日期	2009-08-03 ; 2010-06-13
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/33989]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Xu SH,Sun ZW. Evaluation of influence of multiple scattering effect in light-scattering-based applications[J]. Chinese Physics Letters,2007,24(6):1763-1766.
APA	徐升华,&孙祉伟.(2007).Evaluation of influence of multiple scattering effect in light-scattering-based applications.Chinese Physics Letters,24(6),1763-1766.
MLA	徐升华,et al."Evaluation of influence of multiple scattering effect in light-scattering-based applications".Chinese Physics Letters 24.6(2007):1763-1766.