Birleşik Krallık'ta satışı gerçekleştirilen Brezilya fındığı ve Türk fındıklarındaki aktivite konsantrasyonlarının (238U, 232Th, 40K ve 137Cs) deneysel olarak belirlenmesi.

The aim of this study was to determine activity concentrations of Naturally Occuring Radioactive Materials (NORM) products and artificial radioisotopes in foods, and Brazil nut and Turkish hazelnut were selected from food products to be examined. The activity concentrations of 238U, 232Th, 40K, and 137Cs radioisotopes in Brazil nut and Turkish hazelnut products purchased from 4 different brands operating in the UK were determined by a high purity germanium detector (HPGe) that performs gamma-ray counting. Ethically; all brands were encoded as A, B, C, and D. Activity concentrations of 238U and 232Th in Brazil nut samples were found to lie in the range of 33.9 ± 0.4 ↔ 35.5 ± 0.4 Bq/kg and 19.0 ± 0.3 ↔ 31.3 ± 0.4 Bq/kg, respectively, whereas the activity concentrations of 238U and 232Th in Turkish hazelnut samples were below minimum detectable activity (MDA) values. In all samples, the most dominant sources of radioactivity were 40K in range of 220.0 ± 3.4 ↔ 242.0 ± 3.4 Bq/kg, and very low activity concentrations of 137Cs were detected only in Turkish hazelnut samples purchased from D and A brands as 1.1 ± 0.2 and 1.8 ± 0.1 Bq/kg, respectively. [ABSTRACT FROM AUTHOR]