Abstract
Total gamma ray cross sections are obtained experimentally in Cd, Er and Pt at 122.061 and 136.474 keV and in Pd at 93.613 keV. A transmission experiment is conducted carefully using a high resolution hyperpure germanium (HPGe) detector and a good geometry setup to measure these cross sections with an accuracy close to 1%. In a transmission experiment there generally is a chance of underestimation of these cross sections due to small angle scattering. Photopeak areas that are evaluated must be free from scattering contributions as well as from background. Measures are taken to account correctly for the included small angle scattering. The experimental values are compared with theoretical and semiexperimental data and are found to be in good agreement.
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