Possibility of Prompt 238U Activity Concentration Determination by Gamma-Ray Spectroscopy
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概要
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Recent results on 238U/234Th disequilibria in marine studies seriously challenge the possibility of the prompt gamma-ray spectroscopic determination of 238U activity concentration in environmental samples from the gamma-ray lines of the first daughter of 238U, the nucleus 234Th. In this paper we present the results of the gamma-ray spectrometric measurements of 234Th, which were repeated using the same soil and sediment samples at least one year after the first measurement. We did not find any indication of Th activity variation due to 238U/234Th disequilibria. All the obtained results prove that the 238U and depleted uranium determination in soil and sediment samples using 234Th gamma-ray lines introduces at most a systematic error of 3% into the obtained results.
- 2005-01-15
著者
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Todorovic Natasa
Department Of Physics Faculty Of Sciences Univesity Of Novi Sad
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VARGA Ester
Department of Physics, Faculty of Sciences, University of Novi Sad
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CONKIC Ljiljana
Department of Physics, Faculty of Sciences, University of Novi Sad
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Mrdja Dusan
Department Of Physics Faculty Of Sciences Univesity Of Novi Sad
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Bikit Istvan
Department Of Physics Faculty Of Sciences Univesity Of Novi Sad
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Forkapic Sofija
Department Of Physics Faculty Of Sciences Univesity Of Novi Sad
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Slivka Jaroslav
Department Of Physics Faculty Of Sciences Univesity Of Novi Sad
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Veskovic Miroslav
Department Of Physics Faculty Of Sciences Univesity Of Novi Sad
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Todorovic Natasa
Department of Physics, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 4, 21 000 Novi Sad, Serbia and Montenegro
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Varga Ester
Department of Physics, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 4, 21 000 Novi Sad, Serbia and Montenegro
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Slivka Jaroslav
Department of Physics, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 4, 21 000 Novi Sad, Serbia and Montenegro
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Forkapic Sofija
Department of Physics, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 4, 21 000 Novi Sad, Serbia and Montenegro
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Conkic Ljiljana
Department of Physics, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 4, 21 000 Novi Sad, Serbia and Montenegro
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Mrdja Dusan
Department of Physics, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 4, 21 000 Novi Sad, Serbia and Montenegro
関連論文
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