Study of Natural Radioactivity Levels in Soil Samples Using Gamma-Ray Spectrometry

被引：0

作者：

Lasheen, M. A. ^{[1
]}

Diab, H. M. ^{[2
]}

Bashter, I. I. ^{[3
]}

机构：

[1] Nucl Power Plant Author, Cairo, Egypt

[2] Nucl & Radiol Regulatory Author, Cairo, Egypt

[3] Zagazig Univ, Fac Sci, Cairo, Egypt

来源：

ARAB JOURNAL OF NUCLEAR SCIENCES AND APPLICATIONS | 2014年 / 47卷 / 04期

关键词：

Natural radioactivity; Soil; HPGe detector; Ra-eq activities;

D O I：

暂无

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：

Soil samples were collected along the coastal zone of the north western desert. Radioactivity concentration was measured using high purity germanium detection system (HPGe). Specific activity levels due to Ra-226, Th-232 and K-40 were measured in several soil samples at different distances. The average activity concentration in the collected soil samples were found with an average value of 25.23 +/- 1.3 Bq kg(-1) for Ra-226, the Th-232 specific activities with an average value of 27.3 +/- 1.8 Bq kg(-1) and the K-40 specific activities with an average value of 369.5 +/- 7.4 Bq kg(-1). The absorbed dose in one meter above the soil surface was found to be 43.54 +/- 2 nGy h-l while it is in the order of the world average level (18-93) nGy h(-1.) The radium equivalent activity (Ra-eq), the external hazard index (H-ex) and the annual dose equivalent were also calculated and compared with the international recommended values and found to be within the international level.

引用

页码：83 / 87

页数：5

共 6 条

[1] RADIUM AND URANIUM IN PHOSPHATE FERTILIZERS AND THEIR IMPACT ON THE RADIOACTIVITY OF WATERS [J].