STANDARDIZATION OF AIRBORNE GAMMA-RAY SPECTROMETRIC SURVEY DATA OF GABAL GHARAMUL AND ITS SURROUNDING, NORTHERN EASTERN DESERT, EGYPT

Document Type : Original Article

Authors

1 Airborne Geophysics Dept., Exploration Division, Nuclear Materials Authority, Egypt.

2 Faculty of science, Geophysics department, Ain Shams University, Egypt.

3 Faculty of science, Geophysics department, Ain Shams University, Egypt

4 Airborne Geophysics Dept., Exploration Division, Nuclear Materials Authority, Egypt

Abstract

The present work explains the first step of putting the airborne gamma ray spectrometric data of Gabal Gharamul area and its surrounding, North Eastern Desert into use in radioactive source search at ground concentration of uranium, thorium and potassium. This is done through applying the standardizing procedure of these spectrometric data. Such data were collected in 2003 then a field trip was conducted in 2012. Initially, the procedure involved a linear regression of the airborne count rates (the dependent) against the ground concentrations (the independent) for each measurement point on the ground.
These linear relationships with zero intercept between the ground data and the airborne data for eU, eTh and K were illustrated. Since the slope of the regression line was assured to be the radioactivity sensitivity, the resultant linear equations will be used to determine the values of the ground data

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