Intercomparison NaI(Tl) and HPGe spectrometry to studies of natural radioactivity on geological samples

Publication date: November 2016
Source:Journal of Environmental Radioactivity, Volume 164
Author(s): Nguyen Quoc Hung, Huynh Dinh Chuong, Le Quang Vuong, Tran Thien Thanh, Chau Van Tao
In this study, in situ gamma spectra using NaI(Tl) detector have been compared with the laboratory measurements by using HPGe detector on geological samples. The results for measuring naturally occurring terrestrial gamma radiation of ⁴⁰K and the decay series of ²³²Th and, ²³⁸U respectively of both detectors show a maximum deviation about 5%. The mass activities series from both detectors were checked for coherence using proficiency test procedure from the International Atomic Energy Agency. The reliability and precision pass for final scores for all the analytical determinations of are received "acceptable" for all radionuclides.



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