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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.48 [2010] >
IJPAP Vol.48(07) [July 2010] >
| Title: | Estimation of radioactivity in some sand and soil samples |
| Authors: | Gupta, Monika
Chauhan, R P
Garg, Ajay
Kumar, Sushil
Sonkawade, R G |
| Keywords: | Uranium
Thorium
Potassium
Sand
Soil |
| Issue Date: | Jul-2010 |
| Publisher: | CSIR |
| Abstract: | Natural
radioactivity is composed of the cosmogenic and primordial radionuclides. It is
common in the rocks and soil that make up our planet, in water and oceans, and
in our building materials and homes. Natural radioactivity in sand and soils
comes from 238U and 232Th series and natural 40K.
Radon is formed from the decay of radium which in turn is formed from uranium.
The gaseous radioactive isotope of radon from natural sources has a significant
share in the total quantum of natural sources exposure to human beings. Gamma
radiation from 238U, 232Th and 40K represents
the main external source of irradiation of the human body. In the present
study, the activity for 238U, 232Th and 40K is
found to vary from 45±1.2 to 97± 4.9
Bq/kg, 63 ± 2.0 to 132 ± 3.2 Bq/kg and 492 ± 5.9 to 1110 ± 10.5
Bq/kg, respectively in the soil samples while the
variations have been observed from 63 ± 3.8 to 65 ± 3.7 Bq/kg, 86 ± 2.5 to 96 ± 2.6 Bq/kg and 751± 7.7 to 824 ± 8.2 Bq/kg, respectively in the sand
samples. |
| Page(s): | 482-485 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.48(07) [July 2010]
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