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Gamma Dose Rate and Annual Effective Dose Equivalent in Uttara Kannada District, Karnataka, India.
- Source :
- Radiochemistry; Oct2021, Vol. 63 Issue 5, p672-681, 10p
- Publication Year :
- 2021
-
Abstract
- This study reports the gamma absorbed dose rate (GADR) in 88 locations within five different geological regions of Uttara Kannada district. The measurements were made using a UR-705 environmental radiation dosimeter. The outdoor gamma absorbed dose rate varies from 44.5 to 220.0 nGy h<superscript>–1</superscript> with the mean value of 78.0 nGy h<superscript>–1</superscript>, which is 1.3 times higher than the international average value of 59 nGy h<superscript>–1</superscript>. The indoor gamma absorbed dose rate varies from 57.3 to 242.5 nGy h<superscript>–1</superscript> with an average of 90.0 nGy h<superscript>–1</superscript>, which is slightly higher than the world average of 84 nGy h<superscript>–1</superscript> as suggested by UNSCEAR-2000. The estimated dose rate varies with the geological background and soil type. The total AEDE ranges from 0.3 to 1.38 mSv year<superscript>–1</superscript> with an average of 0.53 mSv year<superscript>–1</superscript>. The average total AEDE is lower than the dose limit of 1 mSv year<superscript>–1</superscript> for public, suggested by ICRP-1991. [ABSTRACT FROM AUTHOR]
- Subjects :
- SOIL classification
GAMMA rays
DOSIMETERS
RADIATION
ELECTRON spin resonance dating
Subjects
Details
- Language :
- English
- ISSN :
- 10663622
- Volume :
- 63
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Radiochemistry
- Publication Type :
- Academic Journal
- Accession number :
- 153185992
- Full Text :
- https://doi.org/10.1134/S1066362221050179