ESTIMATION THE CONCENTRATION OF URANIUM IN THE SEDIMENTS OF THE SOUTHERN PART OF THE SHATT AL-ARAB RIVER, SOUTH OF BASRAH GOVERNORATE USING SSNTDS(CR-39)TECHNIQUES

The present work deals with measuring concentrations of uranium in 20 samples taken from sediments of different sites of southern Shatt al-Arab located south of Basra Governorate Located in the southern part of Iraq, using a uranium fission fragment U-235 (n-f), obtained by the bombardment of U-235 with thermal neutrons. Irradiation was performed, then chemical etching was performed, and then the number of tracks was counted using a microscope. The results computed through the solid state nuclear track detector (SSNTDs) techniques For 20 samples were taken from 20 different sediment sites in the southern part of the Shatt al-ArabIn the southern part of Basra Governorate, southern Iraqindicated that the uranium concentrations in the study area ranged between 1.886 ppm near Al-Shahiniya Road and 3.290 ppm at the AL-Dora 2 site. The t results of the study have shown that the uranium concentrations in the studied surface soil samples were less than the allowed value (11.7 ppm) recommended by UNSCEAR, 1993.

Application of Solid Waste As An Adsorbent For Capture of 137Cs, 85Sr and 131I From Environmental Water

Cesium, strontium, and iodine radionuclides are produced from uranium fission and easily soluble in water through accidents or leakages, as those occurred at Chernobyl, Three Mile Island, and Fukushima. Thus, developing an economical and effective process for removing these radioisotopes from real water is a progressively important issue. Hence, adsorption of 137Cs, 85Sr, and 131I radionuclides was achieved using solid waste adsorbent. The solid waste adsorbent is granular activated carbon (GAC) gained from the wasted household water filters (from the second stage). After the adsorption process, the gained data illustrated that the percentages of uptake for 137Cs, 85Sr, and 131I were 87.6, 85.6, and 82.7 %, respectively. Application of GAC for the decontamination of real water as groundwater, river water, tap water, and seawater was achieved. The findings revealed that GAC has the ability to be employed effectively as a hopeful material for the decontamination of radioactive 137Cs, 85Sr, and 131I from the environmental water.

Revisiting the Analysis of the Isochronous Mass Measurements of Uranium Fission Fragments at the ESR

The re-analysis of experimental data on mass measurements of ura- nium fission products obtained at the ESR in 2002 is discussed. State-of-the-art data analysis procedures developed for such measurements are employed.