On the diffraction pattern of C60 peapods
  We present detailed calculations of the diffraction pattern of a powder of bundles of C$_{60}$ peapods. The influence of all pertinent structural parameters of the bundles on the diffraction diagram is discussed, which should lead to a better interpretation of X-ray and neutron diffraction diagrams. We illustrate our formalism for X-ray scattering experiments performed on peapod samples synthesized from 2 different technics, which present different structural parameters. We propose and test different criteria to solve the difficult problem of the filling rate determination. 
Julien Cambedouzou (GDPC), Vincent Pichot (LPS), Stephane Rols (GDPC),   Pascale Launois (LPS), Pierre Petit (ICS), Robert K...