Abstract

The angle integrated total scattering cross sections of some rare earth oxides were determined experimentally for 59.54 keV gamma rays in the angular ranges of 0–4°, 0–6°, 0–8°and 0–10°. From the experimental total scattering cross sections, the corresponding angle integrated incoherent scattering cross sections obtained from ENDF library (based on the nonrelativistic Hartree–Fock form factor method) was subtracted to obtain the angle integrated coherent scattering cross sections. The angle integrated coherent scattering cross sections show good agreement with that determined from ENDF data. The effective atomic numbers of the selected rare earth oxides were extracted by applying the ratio of cross section method. The variation of angle integrated coherent scattering cross section with the effective atomic number of the selected compounds have been studied.

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