The elastic photon scattering cross sections at 90^∘{} for lead, indium, cadmium, and copper have been measured between 0.5 and 3.0 Mev. Besides the expected Rayleigh scattering by bound electrons and Thomson scattering by the nucleus, a scattering component due to nuclear excitation is evident in the cross sections. The mechanism of this scattering is discussed.
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J. L. Burkhardt (1955) studied this question.
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