WEKO3
アイテム
ASSESSMENT OF NATURAL RADIOACTIVITY OF THE BEACH PLACER SANDS IN MIDDLE COASTAL REGION OF TAMILNADU, INDIA
https://repo.qst.go.jp/records/73132
https://repo.qst.go.jp/records/73132c994e360-3ba6-4c0b-ac56-6ddcd76a4d2c
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-09-13 | |||||
| タイトル | ||||||
| タイトル | ASSESSMENT OF NATURAL RADIOACTIVITY OF THE BEACH PLACER SANDS IN MIDDLE COASTAL REGION OF TAMILNADU, INDIA | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Veerasamy, N.
× Veerasamy, N.× S.K.Sahoo× Inoue, K.× Fukushi, M.× Tsuruoka, H.× Arae, Hideki× Srinivasan, B.× Nimelan, Veerasamy× Sahoo, Sarata× Hideki, Arae |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | High Background Radiation Areas (HBRAs) have significant levels of radiations due to the presence of primordial radionuclides such as 232Th, 238U, and 40K in the beach placer sands. These sands are being extensively used for constructions of buildings. The aim of this study is to determine the radioactivity concentration of beach placer sands from 13 locations along the coastal line of Tamilnadu. The ambient dose rates measured in situ varied from 9 to 467 nGy h-1. The activity concentrations of radionuclide 228Ac, 226Ra and 40K were measured using High Purity Germanium (HPGe) gamma spectrometry. The mean activity concentrations of 228Ac, 226Ra, and 40K were 265 ± 1.7, 88 ± 7.1, 270 ± 3.7 Bq Kg-1, respectively. The annual effective dose rate ranges from 0.03 ± 0.002 to 0.7 ± 0.003 mSvy-1 and was higher than the UNSCEAR annual worldwide average value at a few places. X-ray fluorescence spectrometry (XRF) measurements were performed for the analyses of major elements as its oxide to know presence of minerals and origin of samples. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | ICHLERA 2018 | |||||
| 発表年月日 | ||||||
| 日付 | 2018-09-27 | |||||
| 日付タイプ | Issued | |||||
