Natural γ-ray-emitting radionuclides in Egyptian cement

Natural γ-ray-emitting radionuclides in Egyptian cement

TQ172.1%TL817; Samples of cement manufactured in Egypt and the raw materials have been analyzed using gamma-spectroscopy, in order to determine the concentration of natural radionuclides and associated radiological hazard. The mean of specific activity due to radionuclides of 226Ra, 232Th and 40K wa...

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Veröffentlicht in:核技术（英文版） 2005-12, Vol.16 (6), p.376-380
Hauptverfasser: A.M.EL-ARABI, A.ABBADY, A.H. EL-KAMEL, A. NOSIER, A. MOUSTAFA
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container_title 核技术（英文版）
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creator A.M.EL-ARABI
A.ABBADY
A.H. EL-KAMEL
A. NOSIER
A. MOUSTAFA
description TQ172.1%TL817; Samples of cement manufactured in Egypt and the raw materials have been analyzed using gamma-spectroscopy, in order to determine the concentration of natural radionuclides and associated radiological hazard. The mean of specific activity due to radionuclides of 226Ra, 232Th and 40K was found to be (20±4), (11± 2),(320±18) (gypsum), (41±8), (27±5), (410±27) (clay), (58±11), (18±3), (321±20) (iron ore) and (37.6±6), (11.8±3),phate resistant cement (S.R.C.), clinker and white cement, while the mean specific activities of 226Ra and 232Th are activities (concentrations) are in the same range as the data released in other countries. The calculated radiation hazard parameters for all the samples are still lower than the acceptable values in Egypt and other countries.
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title Natural γ-ray-emitting radionuclides in Egyptian cement
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