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Title: Intrinsic Efficiency Calibration for Uranium Isotopic Analysis in Soil Samples
Authors: Bui, Van Loat
Somsavath, Leuangtakoun
Cao, Dang Luu
Bui, Thi Hong
Khong, Nam Khang
Keywords: Secular equilibrium;gamma-spectrometry;intrinsic efficiency calibration;MGA method
Issue Date: 2017
Publisher: H. : ĐHQGHN
Citation: Bui, V. Loat, et al. (2017). Intrinsic Efficiency Calibration for Uranium Isotopic Analysis in Soil Samples. VNU Journal of Science, Mathematics – Physics, 33, 1, 48-52.
Series/Report no.: Journal of Mathematics – Physics
Abstract: In this work, we present the results of using the non-destructive gamma spectroscopic method for uranium isotopic analysis and checking the status of radioactive equilibrium between 238U and 226Ra in soil samples. In order to analyze uranium isotopes and check the status of equilibrium between 238U and 226Ra the activity ratios 235U/238U and 238U/226Ra were measured. The these activity ratios were determined based on the characteristic gamma rays and using intrinsic (relative) detection efficiency calibration method. The results obtained shows that this suggested analytical method can be used to determine the uranium concentration in the case of the samples having arbitrary shapes and it does not require the use of any reference materials.
ISSN: 2588-1124
Language: en
Appears in Collections:Mathematics and Physics

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