"Assessment of natural radioactivity levels and radiation hazards of radionuclides released from granite and different sedimentary rock types

Abstract

Eighteen samples 0f sediments from Um Bogma, South western Sinai and twelve granite samples collected and from Gabal Gattar, N0rth Eastern Desert in Egypt have been investigated. This work has stressed on the distribution of radionuclides and their ratios in the three phases; original sample, leachate and residual. The concentrati0ns of trace and major elements were determined to c0mpare with the radionuclide, distribution. These have been done thr0w three stages: - First stage; radiometric analysis using Hyper Pure Germanium detector for different radionuclides and their isotopes and daughters.