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Título

NORM studies in an offshore oil production field located in the coast of Ghana

AutorMantero, Juan; Manjón, Guillermo; García-Tenorio, R.
Fecha de publicación2014
CitaciónEU-NORM2 (2014)
ResumenSince the middle of 2012, under the umbrella of the International Atomic Energy Agency, a collaboration between the Spanish Applied Nuclear Physics Research Group located in Sevilla and the Ghana Atomic Energy Commission (GAEC) has been running, devoted mostly to the training of a staff of the GAEC in the performance of up-to date radiometric and dosimetric determinations associated to the activities of NORM industries. The final objective is to have in the near future a consolidated national group in Ghana, with enough knowledge and skill to better manage occupational and public radiological assessments associated to the different NORM activities which can be found in the country. The collaboration is now ongoing, and the training of the GAEC personnel initially involved so advanced, that a first study to evaluate the occupational radiological impact in a typical NORM facility (an offshore oil production field located in the coast of Ghana) is being developed. With this end, several samples of crude oil, produced waters, sludges and scales from the facility have been collected, properly pre-treated , and their radioactive content determined by applying the alpha-particle and the gamma-ray spectrometric techniques. In addition, an external gamma dose rate map of the field has been performed. U-isotopes, Th-isotopes and 210Po activity concentrations by alpha-spectrometry, and 210Pb, 234Th, 226Ra, 228Ra, 228Th and 40K by gamma-ray spectrometry were the nuclides determined, taking into account particularly in the gamma-ray determinations, selfabsorption corrections. In this communication the experimental radiometric and radiological determinations performed will be shown and discussed, and the main conclusions from the radiological point of view highlighted. In view of the radionuclide content found in the analyzed sludges, some recommendations for the proper management of this waste will be done.
DescripciónResumen del póster presentado al "EU NORM 2 Symposium" celebrado en Praga (República Checa) del 17 al 19 de junio de 2014.
URIhttp://hdl.handle.net/10261/123332
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