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...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Akadémiai Kiadó, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic Publishers B.V.
2007
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| Subjects: | |
| Online Access: | http://eprints.utm.my/7584/ http://eprints.utm.my/7584/1/Ramli_Ahmad_Tarmizi_2006_Radioactivity_Levels_U_Th_Activities.pdf |
| _version_ | 1848891496697167872 |
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| author | Abdul Rahman, A.T Ramli, Ahmad Termizi |
| author_facet | Abdul Rahman, A.T Ramli, Ahmad Termizi |
| author_sort | Abdul Rahman, A.T |
| building | UTeM Institutional Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-15T20:58:54Z |
| format | Article |
| id | utm-7584 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:58:54Z |
| publishDate | 2007 |
| publisher | Akadémiai Kiadó, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic Publishers B.V. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utm-75842010-06-01T15:53:38Z http://eprints.utm.my/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/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 |
| 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 |
| title | 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_short | 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 |
| topic | QC Physics |
| url | http://eprints.utm.my/7584/ http://eprints.utm.my/7584/ http://eprints.utm.my/7584/ http://eprints.utm.my/7584/1/Ramli_Ahmad_Tarmizi_2006_Radioactivity_Levels_U_Th_Activities.pdf |