Combined static and dynamic light scattering measurement of nano particles system for use in producing nano structure processes

Engineering and Technology in the coming century instruments, measurements, and products will be related very tiny dimensions (a few tens of nanometers). Knowing the size and particle size distribution of the information required for manufacturing various products. Since the particle size and size distribution, influence on mechanical strength, density and thermal and optical properties of the final product is determined by the sizes are essential. Existing methods of measuring nano particles can be noted that the static and dynamic light scattering measurements. The method of dynamic light scattering hydrodynamic radius of the particle parameters that can be measured. in this method autocorrelation function compute in the certain angle by measure intensity of incident scattering. One of the important method of measuring nano particle is when they are being produced. In this investigation a hardware system is suggested based on theory of two methods (SLS,DLS), then simulation of both methods and the result was compared by traditional methods. In conclusion after simulation in suggested method, measuring time was reduced and an error of about %5 in radius of gyration, average molecular weight, second virial coefficient, hydrodynamic radius were obtained.