Measurement Of Natural And Cs-137 Radioactivity Concentrations At Izmit Bay (Marmara Sea), Turkey

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Öksüz İ., GÜRAY R. T. , Ozkan N. , YALÇIN C. , ERGÜL H. A. , AKSAN S.

9th International Physics Conference of the Balkan-Physical-Union (BPU), İstanbul, Türkiye, 24 - 27 Ağustos 2015, cilt.1722 identifier identifier

  • Cilt numarası: 1722
  • Doi Numarası: 10.1063/1.4944133
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye


In order to determine the radioactivity level at Izmit Bay Marmara Sea, marine sediment samples were collected from five different locations. The radioactivity concentrations of naturally occurring U-238,Th-232 and K-40 isotopes and also that of an artificial isotope Cs-137 were measured by using gamma-ray spectroscopy. Preliminary results show that the radioactivity concentrations of (238)w and Th-232 isotopes are lower than the average worldwide values while the radioactivity concentrations of the 40K are higher than the average worldwide value. A small amount of Cs-137 contamination, which might be caused by the Chernobyl accident, was also detected.