On the diffraction pattern of C <InlineEquation ID="Equ1"> <EquationSource Format="TEX">$\mathsf{_{60}}$</EquationSource> </InlineEquation> peapods

We present detailed calculations of the diffraction pattern of a powder of bundles of C<Subscript>60</Subscript> 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. Copyright Springer-Verlag Berlin/Heidelberg 2004