Assessment of environmental ra-226, th-232 and k-40 concentrations in the region of elevated radiation background in Segamat District, Johor, Malaysia
Extensive environmental survey and measurements of gamma radioactivity in the soil samples collected from Segamat District were conducted. Two gamma detectors were used for the measurements of background radiation in the area and the results were used in the computation of the mean external radiatio...
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my.utm.503742018-11-09T08:11:24Z http://eprints.utm.my/id/eprint/50374/ Assessment of environmental ra-226, th-232 and k-40 concentrations in the region of elevated radiation background in Segamat District, Johor, Malaysia Saleh, Muneer Aziz Ramli, Ahmad Termizi Alajerami, Yasser Aliyu, Abubakar Sadiq GE Environmental Sciences Extensive environmental survey and measurements of gamma radioactivity in the soil samples collected from Segamat District were conducted. Two gamma detectors were used for the measurements of background radiation in the area and the results were used in the computation of the mean external radiation dose rate and mean weighted dose rate, which are 276nGyh-1 and 1.169mSvy-1, respectively. A high purity germanium (HPGe) detector was used in the assessment of activity concentrations of 232Th, 226Ra and 40K. The results of the gamma spectrometry range from 11±1 to 1210±41Bqkg-1 for 232Th, 12±1 to 968±27Bqkg-1 for 226Ra, and 12±2 to 2450±86Bqkg-1 for 40K. Gross alpha and gross beta activity concentrations range from 170±50 to 4360±170Bqkg-1 and 70±20 to 4690±90Bqkg-1, respectively. These results were used in the plotting of digital maps (using ARCGIS 9.3) for isodose. The results are compared with values giving in UNSCEAR 2000. Elsevier Ltd. 2013 Article PeerReviewed Saleh, Muneer Aziz and Ramli, Ahmad Termizi and Alajerami, Yasser and Aliyu, Abubakar Sadiq (2013) Assessment of environmental ra-226, th-232 and k-40 concentrations in the region of elevated radiation background in Segamat District, Johor, Malaysia. Journal of Environmental Radioactivity, 124 . pp. 130-140. ISSN 0265-931X http://dx.doi.org/10.1016/j.jenvrad.2013.04.013 DOI: 10.1016/j.jenvrad.2013.04.013 |
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GE Environmental Sciences Saleh, Muneer Aziz Ramli, Ahmad Termizi Alajerami, Yasser Aliyu, Abubakar Sadiq Assessment of environmental ra-226, th-232 and k-40 concentrations in the region of elevated radiation background in Segamat District, Johor, Malaysia |
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Extensive environmental survey and measurements of gamma radioactivity in the soil samples collected from Segamat District were conducted. Two gamma detectors were used for the measurements of background radiation in the area and the results were used in the computation of the mean external radiation dose rate and mean weighted dose rate, which are 276nGyh-1 and 1.169mSvy-1, respectively. A high purity germanium (HPGe) detector was used in the assessment of activity concentrations of 232Th, 226Ra and 40K. The results of the gamma spectrometry range from 11±1 to 1210±41Bqkg-1 for 232Th, 12±1 to 968±27Bqkg-1 for 226Ra, and 12±2 to 2450±86Bqkg-1 for 40K. Gross alpha and gross beta activity concentrations range from 170±50 to 4360±170Bqkg-1 and 70±20 to 4690±90Bqkg-1, respectively. These results were used in the plotting of digital maps (using ARCGIS 9.3) for isodose. The results are compared with values giving in UNSCEAR 2000. |
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Saleh, Muneer Aziz Ramli, Ahmad Termizi Alajerami, Yasser Aliyu, Abubakar Sadiq |
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Saleh, Muneer Aziz Ramli, Ahmad Termizi Alajerami, Yasser Aliyu, Abubakar Sadiq |
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Saleh, Muneer Aziz |
title |
Assessment of environmental ra-226, th-232 and k-40 concentrations in the region of elevated radiation background in Segamat District, Johor, Malaysia |
title_short |
Assessment of environmental ra-226, th-232 and k-40 concentrations in the region of elevated radiation background in Segamat District, Johor, Malaysia |
title_full |
Assessment of environmental ra-226, th-232 and k-40 concentrations in the region of elevated radiation background in Segamat District, Johor, Malaysia |
title_fullStr |
Assessment of environmental ra-226, th-232 and k-40 concentrations in the region of elevated radiation background in Segamat District, Johor, Malaysia |
title_full_unstemmed |
Assessment of environmental ra-226, th-232 and k-40 concentrations in the region of elevated radiation background in Segamat District, Johor, Malaysia |
title_sort |
assessment of environmental ra-226, th-232 and k-40 concentrations in the region of elevated radiation background in segamat district, johor, malaysia |
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Elsevier Ltd. |
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2013 |
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http://eprints.utm.my/id/eprint/50374/ http://dx.doi.org/10.1016/j.jenvrad.2013.04.013 |
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