Distribution of norm and 137Cs in soils of the Visakhapatnam region, Eastern India, and associated radiation dose

Distribution of norm and 137Cs in soils of the Visakhapatnam region, Eastern India, and associated radiation dose

The specific activity of naturally occurring radioactive materials and (137)Cs in surface soils around the new Bhabha Atomic Research Centre site at Visakhapatnam region, Eastern India, has been determined using high-resolution gamma-ray spectrometry as part of a baseline radiological survey. Radiat...

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Veröffentlicht in:Radiation protection dosimetry 2013-11, Vol.157 (1), p.95-104
Hauptverfasser: Mohapatra, S, Sahoo, S K, Vinod Kumar, A, Patra, A C, Lenka, P, Dubey, J S, Thakur, V K, Tripathi, R M, Puranik, V D
Format: Artikel
Sprache:eng
Schlagworte:
Background Radiation
Carbon Radioisotopes - analysis
Cesium Radioisotopes - analysis
Gamma Rays
Humans
India
Potassium Radioisotopes - analysis
Radiation Dosage
Radiation Monitoring
Soil - chemistry
Soil Pollutants, Radioactive - analysis
Spectrometry, Gamma
Thorium - analysis
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Zusammenfassung:The specific activity of naturally occurring radioactive materials and (137)Cs in surface soils around the new Bhabha Atomic Research Centre site at Visakhapatnam region, Eastern India, has been determined using high-resolution gamma-ray spectrometry as part of a baseline radiological survey. Radiation hazard for the samples was assessed by radium equivalent activity (Raeq) and absorbed gamma dose rate (D). The mean absorbed gamma dose rate was found to be 104.9 nGy h(-1). The average annual effective dose equivalent was found to be 0.13 mSv y(-1).
ISSN:0144-8420
1742-3406
DOI:10.1093/rpd/nct108