Design dynamic light scattering
The design of the ANALYSETTE 12 DynaSizer reduces the optical measurement system to a minimum
The central, optical element of the measurement system is a 90° prism and its top surface also serves as the base of the sample container. The prism permits an optical measurement system that is both compact and stable.
The laser beam is positioned horizontally in the instrument, is deflected in the prism by 90°. So it directly irradiates the sample vertically from below. The portion of backscattered light (backward scattering) passes the prism again and exits through the lower surface, which determines the detected scattering angle of 135°. Behind this, the light is captured by a detector.
The non-scattered part of the laser light is collected by a photon trap. It’s situated at the top end of a glass rod, which is also the upper limit of the measurement volume.
