DETERMINATION OF RADIONUCLIDE'S CONCENTRATION AND RADIOLOGICAL RISK IN THE SOIL SAMPLES OF MADENAT AL-ELEM UNIVERSITY COLLEGEUSING GAMMASPECTROSCOPY

Abstract

This research aims to calculate the concentration of radionuclide's in the soil samples, collected from in and around madenat Al-Elem university area using Gamma- rays spectroscopy with high purity germanium detector (HpGe) with resolution of (2.3keV) for the energy of the 60Co (1.332 MeV). The 25 soil samples were collected from this area, the average activity concentrations of 238U, 232Th, 40K and 137Cs in the samples were found to be (38.089±6.172 , 35.147±5.93 , 700.109±26.46 and 3.854±1.963) Bqkg respectively. The calculated radium equivalent (Raeq) was (142.536±11.939) Bq/kg, the absorbed dose rate(68.137±8.254nGy / h), the external annual effective dose of exposure rate 〖AEDE〗_outwas(0.332mSv/y),〖 AEDE〗_inwa (0.083mSv /y), the gamma index (I) for soil samples was(1.073),the value of the external risk index (Hex) was (0.487) and the internal risk index (Hin) was (0.384).Thus , the present results revealed that the area is safe as far as the health effect are concerned ,but this area continuo's monitoring in future.