Ring Particle Composition and Size Distribution

@inproceedings{Cuzzi2009RingPC,
  title={Ring Particle Composition and Size Distribution},
  author={Jeffrey N. Cuzzi and Roger N. Clark and Gianrico Filacchione and Richard G. French and Robert E. Johnson and Essam A. Marouf and Linda J. Spilker},
  year={2009}
}
We review recent progress concerning the composition and size distribution of the particles in Saturn's main ring system, and describe how these properties vary from place to place. We discuss how the particle size distribution is measured, and how it varies radially. We note the discovery of unusually large “particles” in restricted radial bands. We discuss the properties of the grainy regoliths of the ring particles. We review advances in understanding of ring particle composition from… 
Size distribution of particles in Saturn’s rings from aggregation and fragmentation
TLDR
It is shown that a power-law size distribution with large-size cutoff, as observed in Saturn’s rings, is universal for systems where a balance between aggregation and disruptive collisions is steadily sustained and expected for any ring system where collisions play a role.
Saturn's F ring grains: Aggregates made of crystalline water ice
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