Assessment of natural radioactivity in cements used as building materials in Turkey


OZDIS B. E. , ÇAM N. F. , ÖZTÜRK B.

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, cilt.311, ss.307-316, 2017 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 311 Konu: 1
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1007/s10967-016-5074-0
  • Dergi Adı: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
  • Sayfa Sayıları: ss.307-316

Özet

The radioactivity concentrations of Ra-226, Th-232 and K-40 in 42 samples from different types of cements produced in Turkey were measured using gamma-ray spectrometer. The determined values were 18-143 Bq kg(-1) (Ra-226), 5-66 Bq kg(-1) (Th-232) and 142-540 Bq kg(-1) (K-40). Additionally, the calculated radiological hazard parameters such as absorbed dose rate, annual effective dose, radium equivalent activity, the external hazard, activity and alpha indices were found to be in the range of 38-158 nGy h(-1), 188-776 A mu Sv year(-1), 41-182 Bq kg(-1), 0.11-0.49, 0.15-0.65 and 0.09-0.71, respectively. Finally, the results were statistically evaluated and compared with the reported data in other countries and the international standard values given by European Commission and UNSCEAR.