Studies on the seasonal variation and vertical profiles of natural radionuclides in high background radiation areas of Kerala on the south west coast of India

被引：0
作者：
Primal Pinto
Narayana Yerol
机构：
[1] Mangalore University,Department of Studies in Physics
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2014年 / 302卷
关键词：
Natural radionuclides; Vertical profile; Sand; Gamma dose; Seasonal variation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The paper presents detailed studies on the radiation levels and the seasonal variation and vertical profiles of activity of natural radio nuclei in sand samples of Chavara beach, a high background radiation area of Kerala on the south west coast of India. The elevated levels of 232Th and 226Ra activity were observed in the region with highest activity of 18,515 Bq kg−1 for 232Th. The study on vertical profiles of radionuclides showed a significant variation of activity along with the depth. The higher activity of radionuclides was observed in postmonsoon season. The effective dose rate was evaluated and statistical analysis of the results was performed.
引用
收藏
页码：813 / 817
页数：4
相关论文
共 46 条
[1]  
Krishnan S(2001)Heavy mineral sand deposits of Kerala. Special issue on beach and inland heavy mineral sand deposits of India Explor Res At Miner 13 111-146
[2]  
Viswanathan G(2001)Natural radioactivity in the soil samples of coastal Karnataka of South India Health Phys 80 24-33
[3]  
Balachandran K(2002)Natural radiation distribution of soils at Kotagiri taluk of the Nilgiris biosphere in India J Radioanal Nucl Chem 252 429-435
[4]  
Narayana Y(2004)Gamma dose rates and distribution of natural radionuclides in sand beaches Ilha Grande, Southeastern Brazil J Environ Radioact 75 211-223
[5]  
Somashekarappa HM(2005)Environmental J Environ Radioact 80 287-304
[6]  
Karunakara N(2012)U and J Radioanal Nucl Chem 291 601-1244
[7]  
Avadhani DN(2013)Th concentration measurements in area of high level natural background radiation at Palong, Johor, Malaysia World J Nucl Sci Technol 3 7-165
[8]  
Mahesh HM(2013)Correlation between radionuclides associated with zircon and monazite in beach sand of Rosetta, Egypt World Congr Med Phys Biomed Eng China 39 1241-451
[9]  
Siddappa K(2004)Modelling natural radioactivity in sand beaches of Guarapari, Espírito Santo State, Brazil Radiat Meas 38 153-undefined
[10]  
Selvasekarapandian S(2012)Annual effective dose of high level natural radiation areas of Ramsar J Radioanal Nucl Chem 294 447-undefined
12345