Preparation and Quality Control of 113Sn, 125Sb and 60Co Adsorbed in ZrSiW: Volume and Planar Reference Source for -Detector Calibration

Document Type : Original Article

Authors

1 Radioactive Isotopes and Generators Department, Hot Labs Center, Atomic Energy Authority (AEA), Cairo, Egypt

2 Nuclear Chemistry Department, Hot Labs Center, Atomic Energy Authority (AEA), Cairo, Egypt

3 Radioactive Waste Treatment Department, Hot Labs. Center, Atomic Energy Authority (AEA), Cairo, Egypt

Abstract

NEUTRON activation of tin metal and cobalt chloride targets for production of 113Sn and 125Sb and 60Co was carried out in Egypt’s Second Research Reactor (ETRR-2). The 113Sn, 125Sb and 60Co were loaded onto zirconium silicotungestate gel matrix from aqueous solution at pH 1 by the batch technique. The results obtained during the adsorption process of radionuclides were explained through the Visual MINTEQ program version 3. Then 1 and 0.1g of 113Sn. 125Sb and 60Co-ZrSiW were packed into the volume and planar sealed sources, made of Chinese Artelon, respectively. The radioactivity levels of 113Sn, 125Sb and 60Co were measured and found to be (2.96±0.26, 2.22±0.26, 0.74±0.074kBq) and (0.3±0.03, 026±0.03, 0.11±0.01kBq) for the volume and planar sealed source, respectively, on 27 June 2018. The efficiency curves for the two sealed sources were determined in the energy range 36-1332.5keV, which were measured at 5cm from the HPGe-detector to determine the radioactivity levels of unknown samples for the neutron activation method.

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