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The wavelength dependence of the effective neutron cross section for hydrogen has been investigated by measuring the transmitted total scattering cross section in urea, β-alanine, tartaric acid and polyethyl­ene over the energy range 3 meV to 10 eV. Under the assumption that carbon, nitro­gen and oxygen atoms contribute a small and invariant amount to the measured total cross section, these data represent a direct measure of the wavelength dependence of the overall scattering contribution of the hydrogen atoms to the total cross section. These experimental data can be used to apply effective wavelength-dependent corrections to neutron scattering data of hydrogen-rich simple organic compounds.

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Portable Document Format (PDF) file https://doi.org/10.1107/S1600576719011592/in5026sup1.pdf
The curves of the experimental total scattering cross section for urea, beta-alanine, tartaric acid and polyethylene as measured on the neutron spectrometer VESUVIO in the 3meV-10eV energy range


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