Tholkappian M, Ganesh Durai, Devanesan E, Harikrishnan N, Jebakumar J Prince Prakash, Ravisankar R
Department of Physics, Sri Vari College of Education, Then Arasampattu, Tiruvannamalai 606611, Tamilnadu, India.
Post Graduate and Research Department of Physics, Government Arts College, Tiruvannamalai 606603, Tamilnadu, India.
Data Brief. 2018 Feb 2;17:551-558. doi: 10.1016/j.dib.2018.01.036. eCollection 2018 Apr.
This article contains data on the activity concentration of natural radionuclides in coastal sediment samples collected from Pulicat Lake to Vadanemmeli, East coast of Tamil Nadu using NaI(Tl) detector based γ-spectrometry. As marine sediments are found to be the repository of many radioactive pollutants, studied the objectives like (i) determine natural radionuclide activity concentrations in sediment samples in and around Chennai coast (ii) evaluate the radiological hazards due to natural radioactivity associated with coastal sediments and (iii) identify areas which may be radiological hazardous for the public along the study area. The average activity concentration of U, Th and K in the present study is lower than world median value. The radiological hazard indices such as External hazard index () and Gamma representative level index, (Iγ) were evaluated to assess radiation hazard associated with the sediments. The simulated results show sediments do not pose any significant radiation hazards due to concentration of natural radionuclides.
本文包含了使用基于碘化钠（铊）探测器的γ能谱法，对从泰米尔纳德邦东海岸普利卡特湖到瓦达内梅利采集的沿海沉积物样本中天然放射性核素活度浓度的数据。由于发现海洋沉积物是许多放射性污染物的储存库，因此研究了以下目标：（i）确定钦奈海岸及其周边沉积物样本中的天然放射性核素活度浓度；（ii）评估与沿海沉积物相关的天然放射性造成的辐射危害；（iii）识别研究区域内可能对公众存在辐射危害的区域。本研究中铀、钍和钾的平均活度浓度低于世界中位数。评估了诸如外部危害指数（ ）和γ代表水平指数（Iγ）等辐射危害指数，以评估与沉积物相关的辐射危害。模拟结果表明，由于天然放射性核素的浓度，沉积物不会造成任何重大的辐射危害。
