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Environmental Monitoring and Assessment

, Volume 170, Issue 1–4, pp 457–466 | Cite as

Assessment of natural radiation exposure levels and mass attenuation coefficients of lime and gypsum samples used in Turkey

  • Nevzat Damla
  • Uğur Cevik
  • Ali Ihsan Kobya
  • Ahmet Celik
  • Necati Celik
Article

Abstract

The activity concentrations of 226Ra, 232Th, and 40K in lime and gypsum samples used as building materials in Turkey were measured using gamma spectrometry. The mean activity concentrations of 226Ra, 232Th, and 40K were found to be 38 ± 16, 20 ± 9, and 156 ± 54 Bq kg − 1 for lime and found to be 17 ± 6, 13 ± 5, and 429 ± 24 Bq kg − 1 for gypsum, respectively. The radiological hazards due to the natural radioactivity in the samples were inferred from calculations of radium equivalent activities (Raeq), indoor absorbed dose rate in the air, the annual effective dose, and gamma and alpha indices. These radiological parameters were evaluated and compared with the internationally recommended limits. The experimental mass attenuation coefficients (μ/ρ) of the samples were determined in the energy range 81–1,332 keV. The experimental mass attenuation coefficients were compared with theoretical values obtained using XCOM. It is found that the calculated values and the experimental results are in good agreement.

Keywords

Lime Gypsum Radioactivity Mass attenuation coefficients 

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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Nevzat Damla
    • 1
  • Uğur Cevik
    • 2
  • Ali Ihsan Kobya
    • 2
  • Ahmet Celik
    • 3
  • Necati Celik
    • 2
  1. 1.Department of PhysicsBatman UniversityBatmanTurkey
  2. 2.Department of PhysicsKaradeniz Technical UniversityTrabzonTurkey
  3. 3.Department of PhysicsGiresun UniversityGiresunTurkey

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