2014
DOI: 10.1016/j.jrras.2013.11.001
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Measurements of natural gamma radiation in beach sediments of north east coast of Tamilnadu, India by gamma ray spectrometry with multivariate statistical approach

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Cited by 73 publications
(28 citation statements)
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“…It indicates that all these parameters are strongly associated with the activity of 238 U and 232 Th in the soils, and these radionuclides primarily contribute to the emission of gamma radiation in the study area. The results of the present study are also supported by previous studies [3,53,54,59].…”
Section: Pearson's Correlation Coefficient Analysissupporting
confidence: 92%
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“…It indicates that all these parameters are strongly associated with the activity of 238 U and 232 Th in the soils, and these radionuclides primarily contribute to the emission of gamma radiation in the study area. The results of the present study are also supported by previous studies [3,53,54,59].…”
Section: Pearson's Correlation Coefficient Analysissupporting
confidence: 92%
“…From the comparison Table 1, the 238 U activity was low compared with previous studies by Kannan et al [30], SureshGandhi et al [59] and Ajithra and Shanthi [3], whereas the 232 Th activity was high from the previous studies by Bukhari [15], Ramasamy et al [47], Sivakumar et al [54] and Ravisankar et al [48]. But the present study 40 K activity observed high from the previous studies by Punniyakotti and Ponnusamy [41], Raja [43], Bukhari [15], Ramasamy et al [47] and Ajithra and Shanthi [3].…”
Section: Spatial Distributionmentioning
confidence: 53%
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“…4. In statistics, skewness depicts the degree of asymmetry of a distribution around its mean (Groeneveld & Meeden, 1984;SureshGandhi et al, 2014). As can be seen from Table 4 and Fig.…”
Section: Discussionmentioning
confidence: 99%
“…It is the sum of the weighted activities 226 Ra, 232 Th and 40 K based on the estimation that 10 Bq kg À1 of 226 Ra, 7 Bq kg À1 of 232 Th and 130 Bq kg À1 of 40 K produced the same gamma dose rate (SureshGandhi et al, 2014;Tripathi et al, 2013). In terms of the radiological health safety assessment, the maximum permissible limit of Ra eq 370 Bq kg À1 had been set for materials to be used as component of building construction (Berekta & Matthew, 1985;Sivakumar et al, 2014).…”
Section: Radium Equivalent Activity (Ra Eq )mentioning
confidence: 99%