A fiber-optics-based light scattering instrument for time-resolved simultaneous static and dynamic measurements

A fiber-optics-based multiangle light scattering instrument is presented, which permits time-resolved static and dynamic measurements. The scattered light is simultaneously collected at nine fixed directions using single and few mode fibers. Furthermore, a continuous range of scattering angles between 3.6 degrees and 144.1 degrees is obtained by changing the direction of the incident beam. The instrument is thus ideally suited for determinations of form and structure factors, which demand precise measurements over a large range of scattering angles, as well as for studies of aggregation phenomena or structural transitions, which require time-resolved multiangle measurements. (C) 1996 American Institute of Physics.