Radioactivity levels in soil of salt field area, Kelambakkam, Tamilnadu, India

被引：9

作者：

Ravisankar, R. ^{[1
]}

Rajalakshmi, A. ^{[1
]}

Eswaran, P. ^{[2
]}

Gajendiran, V. ^{[3
]}

Meenakshisundram, V. ^{[3
]}

机构：

[1] Sri Sivasubramania Nadar Coll Engn, Dept Phys, Madras 603110, Tamil Nadu, India

[2] SMK Fomra Inst Technol, Dept Phys, Madras 603103, Tamil Nadu, India

[3] Indira Gandhi Ctr Atom Res, Radiol Safety Sect, Hlth & Safety Div, Kalpakkam 603102, Tamil Nadu, India

来源：

NUCLEAR SCIENCE AND TECHNIQUES | 2007年 / 18卷 / 06期

关键词：

natural radioactivity; soil samples; salt field; gamma-ray spectrometer;

D O I：

10.1016/S1001-8042(08)60011-1

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 in and around salt field area have been analyzed for natural radioactivity concentration using gamma ray spectrometer. The activity concentration for Th-232, U-238 and K-40 are ranged from 27.88 to 45.27 Bq/kg, from BDL to 13.30 Bq/kg, and from 135.54 to 381.28 Bq/kg, respectively. The measured activity concentrations for these radionuclides were compared with world average activity of soil. The average activity concentration of 232Th in the present study is 1.19 times higher than world median value while the activity of 238U and 40K is found to be lower. The absorbed dose rates due to these radionuclides were calculated. The average absorbed gamma dose rate due to the presence of Th-232, U-238 and K-40 in soil samples is 36.99 nGy.h(-1). These results indicate no radiological anomaly. The data presented in this study will serve as a base line survey for primordial radionuclides concentration in the study area.

引用

页码：372 / 375

页数：4

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[1]

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[2]

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[3]

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[4]

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[5]

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[7]

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