Author:
Poliakova Tatiana,Krot Anna,Trigub Alexander,Nevolin Iurii,Averin Alexey,Yapaskurt Vasiliy,Vlasova Irina,Matveev Petr,Kalmykov Stepan
Abstract
AbstractUranium oxide microparticles ingestion is one of the potential sources of internal radiation doses to the humans at accidental or undesirable releases of radioactive materials. It is important to predict the obtained dose and possible biological effect of these microparticles by studying uranium oxides transformations in case of their ingestion or inhalation. Using a combination of methods, a complex examination of structural changes of uranium oxides in the range from UO2 to U4O9, U3O8 and UO3 as well as before and after exposure of uranium oxides in simulated biological fluids: gastro-intestinal and lung—was carried out. Oxides were thoroughly characterized by Raman and XAFS spectroscopy. It was determined that the duration of expose has more influence on all oxides transformations. The greatest changes occurred in U4O9, that transformed into U4O9-y. UO2.05 and U3O8 structures became more ordered and UO3 did not undergo significant transformation.
Funder
Ministry of Education and Science of the Russian Federation
Russian Science Foundation
Publisher
Springer Science and Business Media LLC
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