Analysis of Radionuclides Inventory Contained in Liquid Effluents Resulted from Decommissioning of Vvr-s Nuclear Research Reactor
نویسندگان
چکیده
Activity concentration of the radionuclides presented in liquid effluents has been evaluated in IFIN-HH laboratories. Gamma-ray spectrometry analyses have been performed for liquid and residue samples, and gross beta activity has been evaluated only for residue samples. Co, Cs, Eu, Eu and Ag radionuclides have been found with a higher concentration in residue samples. Taking into account previous assessments, the radionuclide inventory has increased qualitatively due to the presence of Mn and Am radionuclides, and quantitatively due to the progress of the decommissioning project. For the first time, Sr activity has been evaluated through gross beta measurements and it has been found that is comparable with Cs activity. The results obtained is this study would be used for a proper radiological characterization of liquid effluents in order to transfer them in a controlled manner to the treatment plant which is in care of Radioactive Waste Management Department, IFIN-HH. The radiological risk assessment for the workers needs to be done. The comparison between the gross beta and gamma-ray spectrometry analysis can be a proper way to improve the method used in decommissioning process for liquid effluents monitoring.
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