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

作     者：R.RAVISANKAR A.RAJALAKSHMI P.ESWARAN V GAJENDIRAN V.MEENAKSHISUNDRAM 

作者机构：Department of PhysicsSri Sivasubramania Nadar College of EngineeringKalavakkamChennai-603110TamilnaduIndia Department of PhysicsSMK Fomra Institute of TechnologyThaiyurChennai-603 103TamilnaduIndia Radiological Safety SectionHealth and Safety DivisionIndira Gandhi Centre for Atomic Research(IGCAR)Kalpakkam-603102TamilnaduIndia 

出 版 物：《Nuclear Science and Techniques》 (核技术（英文）)

年 卷 期：2007年第18卷第6期

页      面：372-375页

核心收录：

学科分类：070902[理学-地球化学] 0709[理学-地质学] 07[理学] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 0703[理学-化学] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：自然反射性 土壤样品 盐碱地 环境反射学 

摘      要：Soil samples in and around salt field area have been analyzed for natural radioactivity concentration using gamma ray *** activity concentration for ^(232)Th,^(238)U and ^(40)K 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,*** measured activity concentrations for these radionuclides were compared with world average activity of *** average activity concentration of ^(232)Th in the present study is 1.19 times higher than world median value while the activity of ^(238)U and ^(40)K is found to be lower. The absorbed dose rates due to these radionuclides were *** average absorbed gamma dose rate due to the presence of ^(232)Th,^(238)U and ^(40)K 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.