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What causes a plateau in the cross section of neutrons?

  1. Jan 17, 2016 #1


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    It seems to me that the nuclei have a flat elastic scattering cross section of neutrons, for neutron energies from eV to MeV.

    I thought that maybe it was caused because the neutron interact with the nuclei as a hard sphere, so the (quantum) cross section would be 4*pi*r^2, but the I didn't see the correspondence between the nuclear radii and cross sections.

    What causes that flat part in the elastic scattering cross section of neutrons?

    Thanks in advance :)

    Last edited: Jan 17, 2016
  2. jcsd
  3. Jan 22, 2016 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
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