c © Author(s) 2009

The processes leading to the creation of the numerous structures in the Saturn’s rings are dominated by two effects. On the one hand there is a gravitational inter-action of the ring particles with Saturn or its moons and moonlets increasing the eccentricity of the ring constituents. On the other hand frequent inelastic col-lisions between ring particles occur and result in damp-ing of their motion and therefore circularizing the or-bits and locally confining the rings [1]. Spectroscopic measurements of the Saturnian rings have shown, that the ring particles consist of almost pure water ice [2]. The determination of the size dis-tribution of the ring constituents from Cassini and Voy-ager data revealed typical particles sizes between 1 c