Absorbed Gamma-Ray Doses due to Natural Radionuclides in Building Materials

被引：3

作者：

Aguiar, Vitor A. P. ^{[1
]}

Medina, Nilberto H. ^{[1
]}

Moreira, Ramon H. ^{[2
]}

Silveira, Marcilei A. G. ^{[2
]}

机构：

[1] Univ Sao Paulo, Inst Fis, BR-05508 Sao Paulo, Brazil

[2] Ctr Univ FEI, Dept Fis, Sao Bernardo Do Campo,, SP, Brazil

来源：

XXXII BRAZILIAN WORKSHOP ON NUCLEAR PHYSICS | 2010年 / 1245卷

基金：

巴西圣保罗研究基金会;

关键词：

gamma-spectrometry; building materials; hazard indices; effective dose; RADIOACTIVITY; DWELLINGS;

D O I：

10.1063/1.3448020

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This work is devoted to the application of high-resolution gamma-ray spectrometry in the study of the effective dose coming from naturally occurring radionuclides, namely K-40, Th-232 and U-238, present in building materials such as sand, cement, and granitic gravel. Four models were applied to estimate the effective dose and the hazard indices. The maximum estimated effective dose coming from the three reference rooms considered is 0.90(45) mSv/yr, and maximum internal hazard index is 0.77(24), both for the compact clay brick reference room. The principal gamma radiation sources are cement, sand and bricks.

引用

页码：98 / +

页数：3

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