Natural radioactivity and associated radiation hazards in building materials used in Peloponnese, Greece

被引：58

作者：

Papaefthymiou, H. ^{[1
]}

Gouseti, O. ^{[1
]}

机构：

[1] Univ Patras, Dept Chem, Div Phys Inorgan & Nucl Chem, Patras 26500, Greece

来源：

RADIATION MEASUREMENTS | 2008年 / 43卷 / 08期

关键词：

Natural radioactivity; Building materials; Peloponnese; Greece;

D O I：

10.1016/j.radmeas.2008.03.032

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Five different kinds of building materials (Pozzolanic and Portland cements, limestone, white cement, marble powder and sand) commonly used in building construction in Peloponnese, Greece, and Portland cement's raw materials were analyzed for their natural radioactivity content, using gamma-ray spectrometry. Pozzolanic and Portland cement (Cem II) samples were found to contain the highest average Ra-226, Th-232 and K-40 activity concentrations compared with the other examined building material samples. This could be attributed to their containing fly ash, which was found to contain high natural radionuclide concentrations, especially that of Ra-226 (1041 Bq kg(-1)). Results obtained were compared with the results reported by other Greek researchers and the worldwide values for building materials and soil. The calculated activity concentration index (I) values for all the examined building material samples were lower than the recommended exception limits for exposure to external gamma-radiation. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1453 / 1457

页数：5

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