Nanostructures versus crystals in particle channeling

Crystal channeling is a well-established technique at particle accelerators. Nanotechnology offers regular structures of nanochannels, with unique characteristics and with possibilities to vary them over a broad range. Does channeling in nanostructured material offer unique capabilities as compared to channeling in crystal lattices? We address this question with Monte Carlo simulations of channeling in nanotubes of various geometry (SWNT and MWNT) and in crystal lattices. We compare channeling and dechanneling in nanostructures and in crystal lattices.