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Figure 10
Examples of form factors for monodisperse helical ribbons calculated using equation (20) with parameter radius R (Å), ribbon width w (Å), scattering density ρ = 1 (arbitrary units) and helix angle ψ = 27°, and with the integral in equation (17) with m = 10. The case R = 200 Å, w = 326 Å, ψ = 27° corresponds approximately to nanotubes (full wrapping) since under these conditions δ ≃ p = 2πR tan2 ψ (Fig. 9[link]). Data sets have been rescaled and shifted for comparison and ease of visualization.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 58| Part 4| August 2025| Pages 1311-1321
https://doi.org/10.1107/S1600576725004637
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