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Radioactivity levels of 238U and 232Th, the α and β activities and associated dose rates from surface soil in Ulu Tiram, Malaysia

A survey was carried out to determine terrestrial gammaradiation dose rates, the concentration level of 238U and 232Th and α and β activities for the surface soil in Ulu Tiram, Malaysia A 125 measurements were performed using a NaI(T1) gamma-ray detector with crystal size of 1″ × 1″ on 15 soi...

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Main Authors: Abdul Rahman, A.T, Ramli, Ahmad Termizi
Format: Article
Language:English
Published: Akadémiai Kiadó, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic Publishers B.V. 2007
Subjects:
QC Physics
Online Access:http://eprints.utm.my/id/eprint/7584/1/Ramli_Ahmad_Tarmizi_2006_Radioactivity_Levels_U_Th_Activities.pdf
http://eprints.utm.my/id/eprint/7584/
http://dx.doi.org/10.1007/s10967-007-0926-2
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spelling my.utm.75842010-06-01T15:53:38Z http://eprints.utm.my/id/eprint/7584/ Radioactivity levels of 238U and 232Th, the α and β activities and associated dose rates from surface soil in Ulu Tiram, Malaysia Abdul Rahman, A.T Ramli, Ahmad Termizi QC Physics A survey was carried out to determine terrestrial gammaradiation dose rates, the concentration level of 238U and 232Th and α and β activities for the surface soil in Ulu Tiram, Malaysia A 125 measurements were performed using a NaI(T1) gamma-ray detector with crystal size of 1″ × 1″ on 15 soil samples collected from the site area about 102 km2238U and 232Th concentrations were determined in soils by using hyper pure germanium (HPGe) gamma-ray spectrometry. The activity of α and β from the surface soil was counted by using alpha beta counting system. The average value of 238U and 232Th concentrations in soil samples collected are 3.63±0.39 ppm within the range of 1.74±0.20 to 4.58±0.48 and 43.00±2.31 ppm within the range of 10.68±0.76 to 82 10±4.01 ppm, respectively. The average estimate of α and β activity in soil samples collected are 0.65±0.09 Bqg-1 and 0.68±0.08 Bqg-1, respectively. The average of terrestrial gamma-radiation dose rates measured in Ulu Tiram was found to be 200 nGy h -1, within the range of 96 to 409 nGy h-1. The population weighted outdoor annual effective dose was 1.2 mSv. Akadémiai Kiadó, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic Publishers B.V. 2007-09 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/7584/1/Ramli_Ahmad_Tarmizi_2006_Radioactivity_Levels_U_Th_Activities.pdf Abdul Rahman, A.T and Ramli, Ahmad Termizi (2007) Radioactivity levels of 238U and 232Th, the α and β activities and associated dose rates from surface soil in Ulu Tiram, Malaysia. Journal of Radioanalytical and Nuclear Chemistry, 273 (3). pp. 653-657. ISSN 0236-5731 (Print) 1588-2780 (Online) http://dx.doi.org/10.1007/s10967-007-0926-2 10.1007/s10967-007-0926-2
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic QC Physics
spellingShingle QC Physics
Abdul Rahman, A.T
Ramli, Ahmad Termizi
Radioactivity levels of 238U and 232Th, the α and β activities and associated dose rates from surface soil in Ulu Tiram, Malaysia
description A survey was carried out to determine terrestrial gammaradiation dose rates, the concentration level of 238U and 232Th and α and β activities for the surface soil in Ulu Tiram, Malaysia A 125 measurements were performed using a NaI(T1) gamma-ray detector with crystal size of 1″ × 1″ on 15 soil samples collected from the site area about 102 km2238U and 232Th concentrations were determined in soils by using hyper pure germanium (HPGe) gamma-ray spectrometry. The activity of α and β from the surface soil was counted by using alpha beta counting system. The average value of 238U and 232Th concentrations in soil samples collected are 3.63±0.39 ppm within the range of 1.74±0.20 to 4.58±0.48 and 43.00±2.31 ppm within the range of 10.68±0.76 to 82 10±4.01 ppm, respectively. The average estimate of α and β activity in soil samples collected are 0.65±0.09 Bqg-1 and 0.68±0.08 Bqg-1, respectively. The average of terrestrial gamma-radiation dose rates measured in Ulu Tiram was found to be 200 nGy h -1, within the range of 96 to 409 nGy h-1. The population weighted outdoor annual effective dose was 1.2 mSv.
format Article
author Abdul Rahman, A.T
Ramli, Ahmad Termizi
author_facet Abdul Rahman, A.T
Ramli, Ahmad Termizi
author_sort Abdul Rahman, A.T
title Radioactivity levels of 238U and 232Th, the α and β activities and associated dose rates from surface soil in Ulu Tiram, Malaysia
title_short Radioactivity levels of 238U and 232Th, the α and β activities and associated dose rates from surface soil in Ulu Tiram, Malaysia
title_full Radioactivity levels of 238U and 232Th, the α and β activities and associated dose rates from surface soil in Ulu Tiram, Malaysia
title_fullStr Radioactivity levels of 238U and 232Th, the α and β activities and associated dose rates from surface soil in Ulu Tiram, Malaysia
title_full_unstemmed Radioactivity levels of 238U and 232Th, the α and β activities and associated dose rates from surface soil in Ulu Tiram, Malaysia
title_sort radioactivity levels of 238u and 232th, the î± and î² activities and associated dose rates from surface soil in ulu tiram, malaysia
publisher Akadémiai Kiadó, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic Publishers B.V.
publishDate 2007
url http://eprints.utm.my/id/eprint/7584/1/Ramli_Ahmad_Tarmizi_2006_Radioactivity_Levels_U_Th_Activities.pdf
http://eprints.utm.my/id/eprint/7584/
http://dx.doi.org/10.1007/s10967-007-0926-2
_version_ 1643644803230990336
score 13.211869

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