Natural radioactivity and external dose assessment of surface soils in Bolikhamxay province, Laos
p. 10-16
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ĐHQGHN
2018
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oai:112.137.131.14:VNU_123-610102018-01-09T20:03:25Z Natural radioactivity and external dose assessment of surface soils in Bolikhamxay province, Laos Somsavath, Leuangtakoun Bui, Van Loat Vu, Thi Kim Duyen Khong, Nam Khang Gamma spectrometry Activity concentration, Radium Equivalent Activity Absorbed gamma dose rate Annual effective dose rate Minimum Detection Limit p. 10-16 We have determined activity concentrations in 33 soil samples collected from Bolikhamxay Province, Laos. The activity concentrations of the natural radionuclides 226Ra,232Th and 40K in soil samples were measured by a gamma spectrometer with a HPGe detector. The average activity concentrations of the natural radionuclides 226Ra, 232Th and 40K are 43.8 ± 5.6, 57.0 ± 7.3 and 426.4 ± 23.1 Bq.kg-1, respectively. The average activity concentrations of 226Ra and 232Th in this work are higher than those of the world average values. Meanwhile, the activity concentration of 40 K is almost the same of the world average value. The estimated average outdoor annual effective dose (E) and radium equivalent actitvity (Raeq) are 0.17 ± 0.02 mSv.yr-1 and 154.8 ± 16.1 Bq.kg-1, respectively. 2018-01-09T08:12:11Z 2018-01-09T08:12:11Z 2017 Article 2588-1124 http://repository.vnu.edu.vn/handle/VNU_123/61010 en Vol 33;No 4 application/pdf ĐHQGHN |
| institution |
Vietnam National University, Hanoi |
| building |
VNU Library & Information Center |
| country |
Vietnam |
| collection |
VNU Digital Repository |
| language |
English |
| topic |
Gamma spectrometry Activity concentration, Radium Equivalent Activity Absorbed gamma dose rate Annual effective dose rate Minimum Detection Limit |
| spellingShingle |
Gamma spectrometry Activity concentration, Radium Equivalent Activity Absorbed gamma dose rate Annual effective dose rate Minimum Detection Limit Somsavath, Leuangtakoun Bui, Van Loat Vu, Thi Kim Duyen Khong, Nam Khang Natural radioactivity and external dose assessment of surface soils in Bolikhamxay province, Laos |
| description |
p. 10-16 |
| format |
Article |
| author |
Somsavath, Leuangtakoun Bui, Van Loat Vu, Thi Kim Duyen Khong, Nam Khang |
| author_facet |
Somsavath, Leuangtakoun Bui, Van Loat Vu, Thi Kim Duyen Khong, Nam Khang |
| author_sort |
Somsavath, Leuangtakoun |
| title |
Natural radioactivity and external dose assessment of surface soils in Bolikhamxay province, Laos |
| title_short |
Natural radioactivity and external dose assessment of surface soils in Bolikhamxay province, Laos |
| title_full |
Natural radioactivity and external dose assessment of surface soils in Bolikhamxay province, Laos |
| title_fullStr |
Natural radioactivity and external dose assessment of surface soils in Bolikhamxay province, Laos |
| title_full_unstemmed |
Natural radioactivity and external dose assessment of surface soils in Bolikhamxay province, Laos |
| title_sort |
natural radioactivity and external dose assessment of surface soils in bolikhamxay province, laos |
| publisher |
ĐHQGHN |
| publishDate |
2018 |
| url |
http://repository.vnu.edu.vn/handle/VNU_123/61010 |
| _version_ |
1680965731057926144 |