Spatial distribution of gamma radioactivity levels and radiological hazard indices in the East Coastal sediments of Tamilnadu, India with statistical approach
作者: R. RavisankarS. SivakumarA. ChandrasekaranJ. Prince Prakash JebakumarI. VijayalakshmiP. VijayagopalB. Venkatraman
作者单位: 1Post Graduate and Research Department of Physics, Government Arts College, Thiruvannamalai 606603, Tamilnadu, India
2Department of Physics, Mailam Engineering College, Mailam 604304, Tamilnadu, India
3Department of Physics, Global Institute of Engineering & Technology, Vellore 632509, Tamilnadu, India
4Coastal and Environmental Engineering, National Institute of Ocean Technology, Pallikaranai, Chennai 600100, Tamilnadu, India
5Radiological Safety Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, Tamilnadu, India
刊名: Radiation Physics and Chemistry, 2014, Vol.103 , pp.89-98
来源数据库: Elsevier Journal
DOI: 10.1016/j.radphyschem.2014.05.037
关键词: Beach sedimentsGamma ray spectrometryRadiological hazardsMultivariate statistical analysis
原始语种摘要: Abstract(#br)Natural and artificial radionuclide pollutants of the marine environment have been recognized as a serious environmental concern. The natural radioactivity levels in beach sediment samples collected from Thazhankuda (Cuddalore) to Kodiyakkarai along East Coast of Tamilnadu have been determined. Sediment sample were collected by a Peterson grab sampler from 10m water depths parallel to the shore line. The grab sampler collects 10cm thick bottom sediment layer from the seabed along the 20 stations. The radioactivities of 20 samples have been measured with a NaI(Tl) detector. The average specific activities for 238 U, 232 Th, and 40 K were found to be 3.67, 37.23 and 387.17Bqkg −1 respectively. The...
全文获取路径: Elsevier  (合作)
影响因子:1.375 (2012)

  • radioactivity 放射性
  • hazard 危险
  • indices 索引
  • distribution 分布
  • average 平均
  • values 价值观
  • radionuclide 放射性核素
  • analysis 分析
  • equivalent 当量
  • spectrometry 光谱测定