Specific activity and hazards of Archeozoic-Cambrian rock samples collected from the Weibei area of Shaanxi, China

被引：65

作者：

Xinwei, L. ^{[1
]}

Lingqing, W.

Xiaodan, J.

Leipeng, Y.

Gelian, D.

机构：

[1] Shaanxi Normal Univ, Coll Tourism & Environm, Shaanxi 710062, Peoples R China

[2] Nanjing Univ, State Key Lab Mineral Deposits Res, Nanjing 210093, Jiangshu, Peoples R China

[3] Xian Univ Sci & Technol, Dept Geol, Xian 710054, Shaanxi, Peoples R China

来源：

RADIATION PROTECTION DOSIMETRY | 2006年 / 118卷 / 03期

关键词：

D O I：

10.1093/rpd/nci339

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The present work deals with the radioactivity of the Archeozoic-Cambrian rocks of the Weibei area, Shaanxi, China. A total of 45 rock samples of Archeozoic-Cambrian strata were investigated. The radionuclides of the samples, in Bq kg(-1), have been measured using Na(I)Tl gamma-ray spectrometer. The concentration of Ra-226, Th-232 and K-40 in the Archeozoic-Cambrian rock samples range from 12.3 to 55.4, from 2.4 to 98.7 and from 58.6 to 1613.3 Bq kg(-1), respectively. The measured activity concentrations for these radionuclides were compared with the typical world average values. To assess the radiological hazard of the natural radioactivity in the samples, the radium equivalent activity, the external hazard index, internal hazard index and the annual gonadal dose equivalent associated with the radionuclides were calculated and compared with the international recommended values.

引用

页码：352 / 359

页数：8

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