TY - JOUR JF - opsi JO - ICOP & ICPET _ INPC _ ICOFS VL - 23 IS - 0 PY - 2017 Y1 - 2017/2/01 TI - Determining the size and size distribution of nano-spheres by dynamic light scattering and cumulant method TT - تعیین اندازه‌ی متوسط و توزیع اندازه نانو ذرات کروی با استفاده از پراکندگی دینامیکی نور و روش ممان‌های تابع توزیع N2 - Abstract- Dynamic light scattering (DLS) is one of the most powerful methods for determining size of nano-spheres. One of the advantages of this method is determining size distribution of particles. The method of cumulants is a standard technique used to analyze dynamic light scattering data measured for polydisperse samples. These data, from the intensity autocorrelation function of the scattered light, can be describe in terms of a distribution of decay rates and also as size distribution of particles. The method is reformulated in terms of the moments about the mean to permit more satisfactory fits. In this paper the mean size and size distribution of samples in different sizes have been investigated SP - 697 EP - 700 AU - Hooshmand Ziafi, Seyedeh Helia AU - Dashtdar, Masoumeh AD - KW - Dynamic light scattering (DLS) KW - particles size distribution KW - polydisperse KW - moments of decay rate distribution. UR - http://opsi.ir/article-1-1326-en.html ER -