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| Radioactivity levels in soil of salt field area,Kelambakkam,Tamilnadu,India | |
| 作者姓名： | R.RAVISANKAR A.RAJALAKSHMI P.ESWARAN V GAJENDIRAN V.MEENAKSHISUNDRAM |
| 作者单位： | [1]Department of Physics, Sri Sivasubramania Nadar College of Engineering, Kalavakkara, Chennai- 603110, Tamilnadu, India [2]Department of Physics, SMK Fomra Institute of Technology, Thaiyur, Chennai- 603 103, Tamilnadu, India [3]Radiological Safety Section, Health and Safety Division, lndira Gandhi Centre for Atomic Research （1GCAR）, Kalpakkam- 603102, Tamilnadu, India |
| 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 ~(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,respectively.The measured activity concentrations for these radionuclides were compared with world average activity of soil.The 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 calculated.The 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. |
| 关 键 词： | 自然反射性 土壤样品 盐碱地 环境反射学 |
| 收稿时间： | 16 July 2007. |
Radioactivity levels in soil of salt field area, Kelambakkam, Tamilnadu, India |
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| R.RAVISANKAR,A.RAJALAKSHMI,P.ESWARAN,V GAJENDIRAN,V.MEENAKSHISUNDRAM.Radioactivity levels in soil of salt field area,Kelambakkam,Tamilnadu,India[J].Nuclear Science and Techniques,2007,18(6):372-375. | |
| Authors: | R RAVISANKAR A RAJALAKSHMI P ESWARAN V GAJENDIRAN V MEENAKSHISUNDRAM |
| Affiliation: | aDepartment of Physics, Sri Sivasubramania Nadar College of Engineering, Kalavakkam, Chennai- 603110, Tamilnadu, India bDepartment of Physics, SMK Fomra Institute of Technology, Thaiyur, Chennai- 603 103, Tamilnadu, India cRadiological Safety Section, Health and Safety Division, Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam- 603102, Tamilnadu, India |
| Abstract: | Soil samples in and around salt field area have been analyzed for natural radioactivity concentration using gamma ray spectrometer.The 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,respectively.The measured activity concentrations for these radionudides 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 238 U 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 232Th,238U and 40K 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. |
| Keywords: | Natural radioactivity Soil samples Salt field Gamma-ray spectrometer area field salt soil levels Radioactivity data serve base line survey results radiological anomaly dose rate presence absorbed dose rates radionuclides times |
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