Given a nanotubes MWCNT forest with a surface density N in nanotubes/cm2 and inner d and outer D nanotube diameters (or the number of walls w and external diameter D), can we correlate the carbon atomic density projected in a flat surface in carbon atoms/cm2 for ideally Zig-Zag (n,0) or Armchair (n,n) nanotubes.

Thanks