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Alpha track analysis and fission track analysis for localizing actinide-bearing micro-particles in the Yenisey River bottom sedimentsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Vlasova I.E.a, Kalmykov St N.a.b, Konevnik Yu V.a., Simakin S.G.c, Simakin I.S.c, Anokhin A.Yu d, Sapozhnikov Yu A.a.
- Журнал: Radiation Measurements
- Том: 43
- Номер: SUPPL.1
- Год издания: 2008
- Издательство: Pergamon Press Ltd.
- Местоположение издательства: United Kingdom
- Первая страница: 303
- DOI: 10.1016/j.radmeas.2008.04.029
- Аннотация: Distribution of actinides in bottom sediment and flood land soil cores collected from the Yenisey River near the Krasnoyarsk Mining and Chemical Combine (MCC) were analyzed. Actinide-bearing micro-particles were localized using alpha track analysis (ATA) and fission track analysis (FTA). Different types of radioactive micro-particles were found by analysis of the ratios of fission tracks to α-tracks from single particles. The different origin of these particles was confirmed by scanning electron microscopy with energy dispersed microanalysis (SEM-EDX), secondary ion mass-spectrometry (SIMS) and single-particle α-spectrometry. It is established that for most of the radioactive micro-particles ATA and FTA are the only possible techniques to obtain information concerning their origin. For the studied samples of bottom sediments and flood land soils, it was established that 80-90% of alpha radioactivity is attributed to hot-particles with 238Pu and 239,240Pu as the major radionuclides. According to the sequential extraction data most of 238Pu and 239,240Pu is found in the residual low-soluble fraction. © 2008 Elsevier Ltd. All rights reserved.
- Добавил в систему: Калмыков Степан Николаевич