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Title: The natural radioactivity measurements in coastal sediment samples along the East Coast of Tamilnadu using gamma spectrometry technique

The natural radioactivity concentration in beach sediment samples collected from Pattipulam to Devanampattinam of East Coast of Tamilnadu have been determined by NaI (TI) gamma ray spectrometer. The specific activity concentrations range from ≤ 2.21 (BDL) to 37.02 Bq kg{sup −1} with a mean of 3.79 Bqkg{sup −1} for {sup 238}U, ≤ 2.11 (BDL) to 643.77 Bqkg{sup −1} with a mean of 49.60 Bqkg{sup −1} for {sup 232}Th and 300.34 Bqkg{sup −1} to 449.08 Bqkg{sup −1} with a mean of 360.23 Bqkg{sup −1} for {sup 40}K. The potential radiological hazards due to natural radionuclides content such as Radium Equivalent activity (Ra{sub eq}), Representative level index (RLI), External hazard index (H{sub ex}), absorbed gamma does rate (D{sub R}), and Annual effective dose rate (AEDR) are estimated to assess the radiation hazard associated with the sediments. The obtained data are compared with the recommended safety limits and international approved values. All the values are well below the recommended safety limits indicating that radiation levels do not poses any significant health hazard to the public in the area as a result of the natural radioactivity of beach sediments. This study may help the baseline data for more extensive works in the same subjectsmore » of future studies.« less
Authors:
 [1] ;  [2] ; ;  [3]
  1. E.G.S Pillay Engineering College, Nagapattinam, 611002, Tamilnadu (India)
  2. Sri Vari College of Education, Then Arasampattu, Tiruvannamalai, 606611, Tamilnadu (India)
  3. Post Graduate and Research Department of Physics, Government Arts College, Tiruvannamalai 606603, Tamilnadu (India)
Publication Date:
OSTI Identifier:
22488808
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1675; Journal Issue: 1; Conference: AMRP-2015: 4. national conference on advanced materials and radiation physics, Longowal (India), 13-14 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPES AND RADIATION SOURCES; ABUNDANCE; COASTAL REGIONS; COMPARATIVE EVALUATIONS; CONCENTRATION RATIO; DOSE RATES; ECOLOGICAL CONCENTRATION; GAMMA SPECTROSCOPY; NAI DETECTORS; NATURAL RADIOACTIVITY; POTASSIUM 40; RADIATION HAZARDS; SEDIMENTS; THORIUM 232; URANIUM 238