Joint determination of 238Pu, 239, 240Pu, 241Pu, and 90Sr in soil

Autor: Yu. I. Bondar, A. S. Komarovskaya, V.N. Kalinin, V. N. Zabrodskii
Rok vydání: 2006
Předmět:
Zdroj: Radiochemistry. 48:94-98
ISSN: 1608-3288
1066-3622
DOI: 10.1134/s106636220601019x
Popis: A procedure for determination of 238Pu, 239, 240Pu, 241Pu, and 90Sr in soil is reported. 241Pu was determined by liquid scintillation counting in the same Pu sample that was obtained from the initial soil sample by coprecipitation with neodymium fluoride and used for α-spectrometric measurements. 90Sr was determined by the carbonate method after ion-exchange separation of plutonium. The 90Sr activity in the sample was estimated using two measurements of the Cherenkov radiation of 90Y, the first made just after separation of 90Sr from 90Y. This technique allows monitoring of 90Y accumulation, excluding contributions from foreign radionuclides.
Databáze: OpenAIRE