Distribution of 226Ra, 232Th and 40K in Kanyakumari beach placer deposits along Tamil Nadu coast, India

被引：5
|
作者：
Natarajan, Thennaarassan [1 ,2 ]
Sahoo, Sarata Kumar [2 ]
Nakajima, Tetsuo [2 ]
Veerasamy, Nimelan [1 ]
Yamazaki, Shinnosuke [2 ]
Inoue, Kazumasa [1 ]
Ramola, Rakesh Chand [3 ]
机构：
[1] Tokyo Metropolitan Univ, Grad Sch Human Hlth Sci, Dept Radiol Sci, Arakawa ku, Tokyo 1168551, Japan
[2] Natl Inst Quantum Sci & Technol, Natl Inst Radiol Sci, Inage Ku, Chiba 2638555, Japan
[3] H N B Garhwal Univ, Dept Phys, Tehri Garhwal,Badshahi Thaul Campus, Uttarakhand 249 199, India
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2024年 / 333卷 / 05期
关键词：
High background natural radiation area; Placer deposits; Monazite; Thorium; Uranium; BACKGROUND-RADIATION AREA; NATURAL RADIOACTIVITY; SEDIMENTS; RADIONUCLIDES; EXPOSURE; DISTRICT; LEVEL;
D O I：
10.1007/s10967-023-08940-2
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Distributions of Ra-226, Th-232 and K-40 were studied in the coastal region of Kanyakumari district, a high background natural radiation area (HBNRA). The absorbed gamma dose rate ranged from 107 +/- 11 to 41,126 +/- 187 nGy/h. The radiation hazard parameters were found to be much higher than the UNSCEAR world average values. Th-232/Ra-226 activity ratios ranged from 3 to 45, which indicates the collected sand samples may be rich in Th bearing monazite minerals that are mainly responsible for the enhanced radiation level in the Kanyakumari HBNRA.
引用
收藏
页码：2587 / 2595
页数：9
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