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Title: Concentrations of <sup>214</sup>Pb, <sup>214</sup>Bi in <sup>238</sup>U series and <sup>208</sup>Tl, <sup>228</sup>Ac in <sup>232</sup>Th series in granite rock in (Kadugli) Sudan
Authors: Alnour, I A
Ibrahim, N
Hossain, I
Keywords: Radio-nuclides
Thorium Series
Granite Rock
Issue Date: May-2012
Publisher: NISCAIR-CSIR, India
Abstract: A survey study on natural radioactivity of <sup>214</sup>Pb, <sup>214</sup>Bi in <sup>238</sup>U series and <sup>208</sup>Tl, <sup>228</sup>Ac in <sup>232</sup>Th series in granite rock collected from the state of southern Kordofan (Kadugli), Sudan has been carried out by using g-ray spectroscopy technique. The gamma-ray spectra have been measured for daughter decaying of <sup>238</sup>U and <sup>232</sup>Th series. Elemental and activity concentrations were found to be 1.41±0.02 ppm and 17.41±0.19 Bqkg<sup>-1</sup> for <sup>214</sup>Pb, 1.66±0.02 ppm and 25.60±0.21 Bqkg<sup>-1 </sup>for<sup> 214</sup>Bi and 9.56±0.11 ppm and 38.81±0.43 Bqkg<sup>-1</sup> for <sup>208</sup>Tl, 8.55±0.06 ppm and 34.71±0.23 Bqkg<sup>-1</sup>for <sup>228</sup>Ac, respectively. Moreover, average activity concentrations of these radio-nuclides for granite samples have been compared with the typical values of different countries.
Description: 285-288
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.50(05) [May 2012]

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