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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.44 [2006] >
IJPAP Vol.44(03) [March 2006] >
| Title: | Comparative study of the natural radioactivity of some selected rocks from Egypt and Germany |
| Authors: | Ahmed, N K
Abbady, A
Arabi, A M El
Michel, R
Kamel, A H El
Abbady, A G E |
| Keywords: | Radioactivity
Igneous
Metamorphic rock |
| Issue Date: | Mar-2006 |
| Publisher: | CSIR |
| IPC Code: | H01J65/08 |
| Abstract: |
The
radioactivity contents of various radionuclides in rocks play an important role
in health physics and geo-scientific research. The naturally occurring radionuclides
226Ra, 232Th and 40K are the main sources of
radiation in soil and rocks from which traditional building materials are
derived. These radionuclides pose exposure risks externally due to their
gamma-ray emissions and internally due to radon and its progenies, which emit
alpha particles. The activity concentration (Bq/kg) in igneous and metamorphic rock samples from different
locations in Egypt and Germany has
been analysed. The concentration values of samples for 226Ra, 232Th
and 40K were found in the range of 3.9 : 57.4, 3.2 : 53.4 and 202 :
1211 in Egypt and 5.1 : 76,
3.4 : 70 and 10 : 2070, respectively in Germany. Even though these
radionuclides are widely distributed, their concentrations depend on the local
geological conditions.
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| Page(s): | 209-215 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.44(03) [March 2006]
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