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Shanthi, G.; Thampi Thanka Kumaran, J.; Gnana Raj, G. Allan; Maniyan, C.G, E-mail: shanthidickson@gmail.com2010
AbstractAbstract
[en] The study was carried out to evaluate the radioactivity concentration in the food crops grown in high-level natural radioactive area (HLNRA) in south west India. Food samples collected were analysed by means of a gamma spectroscopy and estimated annual dietary intakes of the radioisotopes 226Ra, 228Ra, 228Th and 40K. The annual intake of the food stuffs was estimated on the basis of their average annual consumption. Calculations were also made to determine the effective dose to an individual consuming such diets. The intakes of these radionuclides were calculated using the concentrations in south Indian foods and daily consumption rates of these foods. Daily intakes of these radionuclides were as follows: 226Ra, 0.001-1.87; 228Ra, 0.0023-1.26, 228Th, 0.01-14.09 40K, 0.46-49.39 Bq/day. The daily internal dose resulting from ingestion of radionuclides in food was 4.92 μSv/day and the annual dose was 1.79 mSv/yr. The radionuclides with highest consumption is 40K.
Primary Subject
Source
11. international symposium on radiation physics: Frontiers in radiation physics and applications; Melbourne (Australia); 20-25 Sep 2009; S0168-9002(09)01996-2; Available from http://dx.doi.org/10.1016/j.nima.2009.10.068; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Literature Type
Conference
Journal
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment; ISSN 0168-9002;
; CODEN NIMAER; v. 619(1-3); p. 436-440

Country of publication
ACTINIDE NUCLEI, ALKALINE EARTH ISOTOPES, ALPHA DECAY RADIOISOTOPES, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, CARBON 14 DECAY RADIOISOTOPES, DOSES, ELECTRON CAPTURE RADIOISOTOPES, EVEN-EVEN NUCLEI, HEAVY ION DECAY RADIOISOTOPES, HEAVY NUCLEI, INTERNAL CONVERSION RADIOISOTOPES, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, LIGHT NUCLEI, NANOSECONDS LIVING RADIOISOTOPES, NUCLEI, ODD-ODD NUCLEI, POTASSIUM ISOTOPES, RADIOISOTOPES, RADIUM ISOTOPES, SPECTROSCOPY, THORIUM ISOTOPES, YEARS LIVING RADIOISOTOPES
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