Journal of Radioanalytical and Nuclear Chemistry

, Volume 270, Issue 2, pp 307–312

Natural radioactivity distribution in geological matrices around Kaiga environment

  • A. K. Patra
  • J. Sudhakar
  • P. M. Ravi
  • J. P. James
  • A. G. Hegde
  • M. L. Joshi
Article

DOI: 10.1007/s10967-006-0349-5

Cite this article as:
Patra, A., Sudhakar, J., Ravi, P. et al. J Radioanal Nucl Chem (2006) 270: 307. doi:10.1007/s10967-006-0349-5

Summary

The activity and absorbed dose rate of the naturally occurring radionuclides, viz. 238U, 232 Th and 40K were determined in soil and rock samples collected around Kaiga site. The mean activity levels (Kaiga soil) of naturally occurring 232 Th are comparable with that in worldwide soil, while concentrations of 238U and 40K are lower than those in worldwide soil. The absorbed dose rate in outdoor air ranged 20-58 nGy . h-1 with a mean of 33.3 nGy . h-1, which is below the world average of 60 nGy . h-1. The total effective dose rate in outdoor air for soils ranged 25.6-74.4 mSv . y-1 with a mean of 43.0 mSv . y-1. The estimated dose rate at Kaiga is comparable with that estimated at Kakrapar and Rawatbhata and much less than that estimated at coastal sites of India.

Copyright information

© Springer-Verlag/Akadémiai Kiadó 2006

Authors and Affiliations

  • A. K. Patra
    • 1
  • J. Sudhakar
    • 2
  • P. M. Ravi
    • 3
  • J. P. James
    • 4
  • A. G. Hegde
    • 5
  • M. L. Joshi
    • 6
  1. 1.ESL (ESS, Health Physics Division, BARC), Kaiga Generating Station
  2. 2.ESL (ESS, Health Physics Division, BARC), Kaiga Generating Station
  3. 3.ESL (ESS, Health Physics Division, BARC), Kaiga Generating Station
  4. 4.Health Physics Division, BARC
  5. 5.Health Physics Division, BARC
  6. 6.ESL (ESS, Health Physics Division, BARC), Kaiga Generating Station