TY  - JOUR
T1  - Estimation of Concentration of Radioactive Elements for the Liquid Waste Pool in
Radiochemistry Laboratories in Al Tuwaitha Site Baghdad-Iraq
AU - Ibrahim, Zaidoon H. AU - Mkhaiber, Ahmed. Fadhil. AU - Al-Nasri, S.K. 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 10
SP  - 3386
EP  - 3391
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.3386.3391
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.3386.3391
KW  - Gamma-ray
KW  -emmit
KW  -laboratories
KW  -waste
KW  -isotope
KW  -half-life
AB  - The aim of this research is estimating the total radioactivity for the High Level Liquid Waste pool
(HLLW) in the radiochemistry waste hall in Al-Tuwaitha site. The collected samples from this pool analyzed
by using two techniques, the first is gamma spectroscopy system with High Purity Germanium Detector (HPGe)
to measure the radioactivity concentration of gamma-ray emitters and to identify their isotopes. The results of
measurements show that the average radioactivity concentration of Cesium (<sup>137</sup>Cs) equal to 2.085 MBq/L. The
second technique is gross alpha beta counter by using (LUDLUM 3030) device with zinc sulfide scintillation
detector ZnS (Ag) to measure the radioactivity concentrations of the other radionuclides which are not
gamma-ray emitters for the same samples that can not be detected in the first method. Cesium-<sup>137</sup> has separated
from these samples by evaporation process because it also emmit beta particles associated with gamma
photons, the remaining activity is (3.0054 MBq/L). According to work history of the radiochemistry laboratories
this waste is nuclear fission products for Uranium-235 (<sup>235</sup>U) isotope, therefore, the remaining activity refers to
Strontium-90 (<sup>90</sup>Sr) radionuclide due to its long half-life.
ER  -