Abstract
Total photoelectric cross sections of gamma rays are determined by subtracting the theoretical scattering cross sections from the experimental total gamma-ray cross sections of Wiedenbeck in the elements Al, Cu, Sn, W, Au and Pb in the energy region 50-208 keV. These values are compared with the latest theoretical values of Rakavy and Ron, Schmickley and Pratt and the compiled data of Hubbell and Berger. Agreement is observed between the theoretical and experimental values within 5%, except in lead at 50 and 105 keV energies. A systematic measurement of total gamma-ray cross sections in lead at these energies is suggested.
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