经典Mie散射的数值计算方法改进  

An Improved Algorithm of Classical Mie Scattering Calculation

作　　者：沈建琪[1] 刘蕾[1] 

机构地区：[1]上海理工大学,理学院,上海,200093 上海理工大学,理学院,上海,200093

出　　处：《中国粉体技术》2005年第z1期45-50,共6页China Powder Science and Technology

基　　金：国家自然科学基金(50376041)和上海市曙光计划(04SG49)资助项目.

摘　　要：介绍一种改进的Mie散射数值计算方法,对Mie散射系数中不同的参量选用合适的递推关系进行计算,数值计算结果表明该方法具有快速、稳定、不受颗粒粒径和折射率范围影响的优点.The calculation of the classical Mie theory is very important for particle size analysis. In the work, an improved algorithm of Mie scattering calculation is presented. By re-constructing the Mie scattering coefficients, a parameter is found to control the convergence and the precision of the Mie calculation. The related parameters are calculated by means of the proper downward or upward recurrences respectively, which are proved to be very fast and stable. Numerical calculation shows that the algorithm is efficient, reliable and robust in an extremely wide range of particle size and refractive index.

关 键 词：MIE散射 数值计算 计算方法 

分 类 号：TB44[一般工业技术]