The total cross sections of liquid nitrogen and oxygen and the total cross section of gaseous nitrogen for neutrons with wavelengths in the 4 to 15-A range were determined in the VVR-M reactor of the institute of Physics, Academy of Sciences, Ukr.SSR. The cross sections of gaseous oxygen and nitrogen rise monotonically with increasing wavelength, while those of the liquids begin to fat1 at λ ∼ 5–5.5 A. Apparently this effect is connected with the existence of short-range order in the liquids; in nature, it is similar to the scattering of neutrons in polycrystalline material for wavelengths close to λ = 2dmax. The existence of coherent effects in the total cross section of heavy water is considered.
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Vertebnyi, V.P., Dzyub, I.P., Maistrenko, A.N. et al. Coherent effects during the interaction of slow neutrons with liquids. At Energy 18, 585–589 (1965). https://doi.org/10.1007/BF01116091
- Liquid Nitrogen
- Gaseous Nitrogen
- Total Cross Section