137Cs activity concentration in soil of Alagoas State, Brazil.

被引：7
|
作者：
Filgueiras, Rogerio de Andrade [1 ]
Dutra Garcez, Ricardo Washington [1 ]
da Silva, Leandro Barbosa [1 ]
Lopes, Jose Marques [2 ,3 ]
Araujo Ribeiro, Fernando Carlos [4 ]
Viglio, Eduardo Paim [5 ]
da Silva, Ademir Xavier [1 ,6 ]
机构：
[1] Univ Fed Rio de Janeiro, Nucl Engn Program, Rio De Janeiro, RJ, Brazil
[2] Univ Fed Bahia, Phys Inst, Earth & Environm Phys Dept, Salvador, BA, Brazil
[3] Univ Fed Bahia, Postgrad Program Geochem Petr & Environm POSPETRO, Salvador, BA, Brazil
[4] Inst Radioprotect & Dosimetry, Rio De Janeiro, RJ, Brazil
[5] Geol Survey Brazil, Rio De Janeiro, Brazil
[6] Univ Fed Rio de Janeiro, Polytech Sch, Rio De Janeiro, Brazil
来源：
APPLIED RADIATION AND ISOTOPES | 2021年 / 170卷
关键词：
Cs-137; Activity concentration; Soil; HPGe;
D O I：
10.1016/j.apradiso.2021.109607
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Cesium 137 is present in worldwide. To evaluate its deposition in the Brazilian state of Alagoas a total of 41 samples were collected by the Geological Survey of Brazil, then processed and analyzed by gamma-ray spectrometry with hyperpure germanium detectors. The activity concentration varied from (0.3 +/- 0.1) Bq/kg to (1.1 +/- 0.4) Bq/kg. The present study shows that the Borborema Plateau acts as a natural barrier to rainfall, favoring the deposition of Cs-137 on the local soil.
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页数：5
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