Studies of natural radionuclides and dose estimation from soil samples of Kumaun Himalaya, India

被引：0
|
作者：
G. S. Gusain
Manjari Badoni
Ganesh Prasad
Yogesh Prasad
T. V. Ramachandran
R. C. Ramola
机构：
[1] H N B Garhwal University,Department of Physics
[2] Bhabha Atomic Research Centre,Environmental Assessment Division
来源：
Indian Journal of Physics | 2009年 / 83卷
关键词：
Gamma ray spectrometer; soil samples; radium equivalent activity; external gamma dose; 82.80.Ej; 87.50.Gi;
D O I：
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中图分类号：
学科分类号：
摘要：
In the present study, the distribution of natural radionuclides in soil samples collected from different geological units of Kumaun Himalayas are assessed using gamma ray spectrometer with Nal(Tl) detector. The naturally occurring radioactivity concentration of 226Ra, 232Th and 40K were found to vary from 36.4 Bq/kg to 166.6 Bq/kg, 15.3 Bq/kg to 94.7 Bq/kg and 645.9 Bq/kg to 1378.9 Bq/kg, respectively. The total absorbed gamma dose rate was found to vary from 80 nGy/h to 179.6 nGy/h. The resulting dose due to the presence of these radionuclides was estimated from radiation protection point of view. The significance of this investigation is also discussed in details.
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页码：1215 / 1220
页数：5
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