Assessing deposition levels of 55Fe, 60Co and 63Ni in the Ignalina NPP environment

Two RBMK-1500 reactor units operated in Lithuania in the 1987–2004 period (one of them was stopped for decommissioning in 2004). This study presents a preliminary investigation of surface deposition density levels of 55Fe and 63Ni in moss samples collected in the close vicinity of the Ignalina NPP....

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Published inJournal of environmental radioactivity Vol. 101; no. 6; pp. 464 - 467
Main Authors Gudelis, A., Druteikienė, R., Lukšienė, B., Gvozdaitė, R., Nielsen, S.P., Hou, X., Mažeika, J., Petrošius, R.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Kidlington Elsevier Ltd 01.06.2010
Elsevier
Subjects
Anion-exchange and extraction chromatography
Applied sciences
Chromatography, Ion Exchange
Cobalt Radioisotopes - analysis
Cobalt-60
Exact sciences and technology
Gamma-spectrometry
Geography
Global environmental pollution
Ignalina NPP
Iron - analysis
Iron-55
Liquid scintillation counting
Lithuania
Mosses
Nickel - analysis
Nickel-63
Nuclear Power Plants
Pollution
Radiation Monitoring
Radioisotopes - analysis
RBMK-1500
Lithuania
Eastern Europe
Europe
Liquid scintillation counting
Gamma-spectrometry
Nickel-63
RBMK-1500
Mosses
Anion-exchange and extraction chromatography
Iron-55
Ignalina NPP
Cobalt-60
Liquid scintillation detectors
Radiochemical analysis
Radioisotope
Ion exchange chromatography
Musci
Atmospheric fallout
Iron 55
Nickel 63
Bryophyta
Nuclear reactor
Nuclear power plant
Environment impact
Cobalt 60
Hylocomium splendens
Pleurozium schreberi
Gamma spectrometry
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Summary:Two RBMK-1500 reactor units operated in Lithuania in the 1987–2004 period (one of them was stopped for decommissioning in 2004). This study presents a preliminary investigation of surface deposition density levels of 55Fe and 63Ni in moss samples collected in the close vicinity of the Ignalina NPP. Non-destructive analysis by the HPGe gamma-spectrometry was followed by radiochemical separation. Radiochemical analysis was based on anion-exchange and extraction chromatography. 55Fe and 63Ni activities were measured by liquid scintillation counting (LSC). The results indicate that the deposition values of 55Fe are generally higher than those of 60Co and 63Ni.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:0265-931X
1879-1700
DOI:10.1016/j.jenvrad.2008.08.002