Delbrück scattering of 1.115MeV photons

The contribution of Delbruck scattering to the elastic scattering of photons has been investigated for photon energy of 1.115MeV. Differential cross-sections for the elastic scattering of 1.115MeV photons, using gamma-ray isotope 65Zn, have been measured from high-Z target atoms (Z=74 and 82) at ang...

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Bibliographic Details
Published in:Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2006-12, Vol.75 (12), p.2252-2257
Main Authors: Sen Gupta, Swapan K., Kunwar, Bhakta, Bhadra, Arunava
Format: Article
Language:English
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Summary:The contribution of Delbruck scattering to the elastic scattering of photons has been investigated for photon energy of 1.115MeV. Differential cross-sections for the elastic scattering of 1.115MeV photons, using gamma-ray isotope 65Zn, have been measured from high-Z target atoms (Z=74 and 82) at angles ranging from 30 deg to 135 deg , using a high-purity co-axial germanium detector and computer-based data acquisition hardware and data analysis software. S-matrix theoretical calculations of Rayleigh scattering cross-sections were performed at 1.115MeV and the experimental results were compared with these theoretical computations, which include Delbruck and nuclear Thomson amplitudes. The present experimental data at 1.115MeV indicate that Delbruck amplitudes calculated with lowest-order Born approximation are sufficient, as at 1.33MeV, when combined with S-matrix-Rayleigh scattering amplitudes.
ISSN:0969-806X
DOI:10.1016/j.radphyschem.2006.07.002