Properties of Soil in Najaf Governorate

Jamal K Alsaedi,Nada M Hasan,Raad G Hassan

doi:10.30526/31.2.1942

Abstract

Eight soil samples were selected around Najaf governorate at depth levels 40-50 cm. X-Ray Fluorescence (XRF) was used to determine the concentrations of major and trace elements. Liner and mass attenuation coefﬁcient (µ, µρ) have been determined at gamma energies (662, 1172,1332) keV using NaI (Tl) detector. The range of linear attenuation coefficients for calculated samples were (0.553-1.163) cm-1, (0.122-0.178) cm-1 and (0.049-0.105) cm-1 at (662, 1172,1332) keV respectively. The range of mass attenuation coefficients obtained (0.39-0.76) cm2/gm, (0.087-0.117) cm2/gm and (0.0336-0.074) cm2/gm at (662, 1172,1332) keV respectively. The results showed that Fe content in the samples has a strong effect on the mass attenuation coefficient and this parameter is inversely proportional to the gamma energy.

Highlights

The soil characteristics were studied in a different directions depending on its importance area from the viewpoint of specialists
The coordinates of area is 30o 3” 29” N, 31o 13, 44” E at depth of 50 cm from the ground surface of soil. This area was selected for an important geology, that containing groundwater reservoirs
The liner and mass attenuation coefficients of the soil samples decrease with increasing the energy as shown in Figure (15-16)

Summary

Introduction

The soil characteristics were studied in a different directions depending on its importance area from the viewpoint of specialists. Gamma ray interaction with the soil depends on chemical and physical properties [2]. The degree of attenuation coefficient depends on many factors which are: the material density, sample composition, photon energy and the length of the radiation path within the material. Many published reports calculated the linear and mass attenuation coefficients for different soil samples. The coordinates of area is 30o 3” 29” N, 31o 13, 44” E at depth of 50 cm from the ground surface of soil This area was selected for an important geology, that containing groundwater reservoirs. The chemical composition of the soil samples was analyzed using an energy-dispersive X-ray fluorescence (EDXRF) spectrometer from SPECTRO (X-LAB 2000).

Result and discussion

Conclusion