INVESTIGADORES
PEREZ QUINTIAN Luis fernando
artículos
Título:
IMPLEMENTATION AND COMPARISON OF DYNAMIC AND STATIC LIGHT SCATTERING TECHNIQUES FOR POLIDISPERSE PARTICLE SIZING USING A CCD CAMERA
Autor/es:
NATALIA ÁLVAREZ; MARÍA TERESA GAREA; FERNANDO PEREZ QUINTIÁN
Revista:
Journal of Physics: Conference Series
Editorial:
IOP Publishing
Referencias:
Lugar: Philadelphia; Año: 2011 p. 121341 - 121348
ISSN:
1742-6588
Resumen:
Laser techniques for particle sizing are used in industrial as well as in scientific applications due to the direct connection between the measured quantities in light dispersion processes and particle properties. We have successfully implemented two light scattering techniques, adapted to function with a CCD camera as detector: the dynamic technique, studies the temporal correlation of the scattered light in a fixed direction (known as DLS for "Dynamic Light Scattering"); the static technique, retrieves the mean intensity distribution as a function of the scattering direction. We present experimental results on monodisperse and polidisperse solutions of latex spheres diffusing in water and compare the performance of these techniques. The statistical averaging over the CCD pixels allows significant reduction of measurement times.
