New information about the U/Th sediment contamination provided by the neutron-induced fission activation analysis

I. Georgescu; A. Danis; A-S. Mihai

doi:10.1007/bf02033787

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 216: Issue 2

New information about the U/Th sediment contamination provided by the neutron-induced fission activation analysis

Authors:

I. Georgescu

I. Georgescu Polytechnic University Faculty of Chemical Technology Str. Polizu 1 78126 Bucharest Romania

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A. Danis

A. Danis Institute of Physics and Nuclear Engineering Section 6 P.O. Box MG-6 76900 Bucharest Romania

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A-S. Mihai

A-S. Mihai Polytechnic University Faculty of Chemical Technology Str. Polizu 1 78126 Bucharest Romania

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Pages:: 253–260

Online Publication Date:: 13 Aug 2005

Publication Date:: 17 Feb 1997

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02033787

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Abstract

The possibility to obtain new information about the U/Th contamination using the patterns of the fission track micromapping is put into evidence. For the investigated samples, bed load sediments sampled from Danube river and Delta, fission track micromappings were obtained using the neutron-induced fission of the U and Th elements and the track registration of their fission fragments in muscovite track detectors. Utilising the optical microscopy, these micromappings were used both for U and Th content measurements and for studies of U/Th atom distributions. Considering the track micromapping pattern as a characteristic of the U/Th atom distribution in the analysed sample, and basing on the micromapping patterns that were previously obtained for the samples contaminated in the specific conditions, the authors were able to establish: (1) the presence of the contamination of the sediments in spite of the fact that the U/Th concentration values did not exceed the natural background values, (2) the solubility of the U/Th chemical compounds in the initial waste and (3) the presence of a succession of U/Th contaminations as well as the presence of the transported contamination.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)