Estimation of radiation hazard indices from natural radioactivity of some rocks

A. ABBADY; N.K. AHMED; A.M. EL-ARABI; R. MICHEL; A.H. EL-KAMEL; A.G.E. ABBADY

doi:10.1016/S1001-8042(06)60023-7

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Estimation of radiation hazard indices from natural radioactivity of some rocks

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- Estimation of radiation hazard indices from natural radioactivity of some rocks
- Nuclear Science and Techniques Vol. 17, Issue 2, (2006)
- Affiliations：
  
  1.Physics Department, Faculty of Science Qena, South Valley University, Egypt;
  2.Institute of the Radiation Protection and Radioecology , Hannover University, Germany;
  3.Physics Department, Faculty of Science, Assiut University, Egypt
- Author bio：
  
  E-mail: mousa_19@yahoo.com
- Funds：
- DOI：10.1016/S1001-8042(06)60023-7
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Cite this article
A. ABBADY, N.K. AHMED, A.M. EL-ARABI, et al. Estimation of radiation hazard indices from natural radioactivity of some rocks. [J]. Nuclear Science and Techniques 17(2):118-122(2006)
DOI：

A. ABBADY, N.K. AHMED, A.M. EL-ARABI, et al. Estimation of radiation hazard indices from natural radioactivity of some rocks. [J]. Nuclear Science and Techniques 17(2):118-122(2006) DOI： 10.1016/S1001-8042(06)60023-7.

摘要

Abstract

Different samples of igneous and metamorphic rocks from Egypt and Germany have been considered to measure γ-ray activity concentrations due to naturally occurring, potentially hazardous radonuclides ,226,Ra,232,Th and ,40,K. The radiation hazard parameters including radiation equivalent activity, gamma-absorbed dose rate, and external and internal hazard indices have been estimated. The gamma-absorbed dose rates in air of rocks in Egypt range from 4.2 to 128.5 nGy·h,-1, with a mean value of 55.3nGy·h,-1,. For igneous and metamorphic rocks from Germany, the values of absorbed dose rates fluctuate from 5.1 to 148.6nGy·h,-1, with a mean value of 60.9nGy·h,-1,. Generally, it is found that the radiation hazard indices in common igneous rocks are distinctly higher in acidic than in ultrabasic rocks. The results are discussed and compared with the corresponding published data.

关键词

Keywords

Natural radioactivityRocksHazard indices

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