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ORIGINAL ARTICLE
Year : 2017  |  Volume : 40  |  Issue : 1  |  Page : 18-20

Study of equilibrium status among uranium and thorium series radionuclides in soil samples from Visakhapatnam, India


1 Health Physics Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, India
2 Radiation Safety Systems Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, India

Correspondence Address:
Pradyumna Lenka
Health Physics Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/rpe.RPE_13_17

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Surface soil samples from coastal region of Visakhapatnam were analyzed for uranium series and thorium series radionuclides by high-resolution gamma-ray spectrometry. Isotopic ratios of 226Ra/238U and 224Ra/232Th were calculated to investigate the radioactive equilibrium status in the samples. 226Ra/238U and 224Ra/232Th ratios were found to vary from 0.80–1.40 to 0.94–1.40 with mean values of 1.05 and 0.99, respectively. Results showed a prevalent radioactive equilibrium for both uranium and thorium series radionuclides in the surface soil of the study area.


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