Distribution patterns of gamma radiation dose rate in the high background radiation area of Odisha, India

Distribution patterns of gamma radiation dose rate in the high background radiation area of Odisha, India

Absorbed dose rates in air for 20 residential areas in Odisha were measured using a vehicle-mounted NaI(Tl) scintillation spectrometer. The average values and standard deviations of absorbed dose rate in air for seaside and inland areas were 230 ± 116 nGy h −1 and 123 ± 18 nGy h −1 , respectively. T...

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Veröffentlicht in:Journal of radioanalytical and nuclear chemistry 2020-06, Vol.324 (3), p.1423-1434
Hauptverfasser: Inoue, Kazumasa, Sahoo, Sarata Kumar, Veerasamy, Nimelan, Kasahara, Shogo, Fukushi, Masahiro
Format: Artikel
Sprache:eng
Schlagworte:
Background radiation
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Gamma rays
Hadrons
Heavy Ions
Inorganic Chemistry
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
Radiation dosage
Radiation, Background
Radioactive substances
Residential areas
Uranium
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Zusammenfassung:Absorbed dose rates in air for 20 residential areas in Odisha were measured using a vehicle-mounted NaI(Tl) scintillation spectrometer. The average values and standard deviations of absorbed dose rate in air for seaside and inland areas were 230 ± 116 nGy h −1 and 123 ± 18 nGy h −1 , respectively. The annual external effective dose ranged from 0.43 to 4.59 mSv y −1 with the average value of 1.29 mSv y −1 ; this indicated there were wide deviations. Analysis of measured data showed that 232 Th and 238 U were concentrated in the seaside area.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-020-07176-8