Determination of 222Rn and 238U Concentrations in Some Selected Samples of Rock for Sulaimani Area (Kurdistan Region-Iraq)

Determination of 222Rn and 238U Concentrations in Some Selected Samples of Rock for Sulaimani Area (Kurdistan Region-Iraq)


Kamal O. Abdullah

University of Sulaimani, Faculty of Science and Science Education, Physics Department

kamal.abdullah@univsul.edu.iq



Article info


Original: 1 Apr.  2015
Revised: 3 May 2015
Accepted:31 May 2015
Published online:  
20 Dec. 2015
             

Key Words: 
Rock, Radon, Uranium, 
SSNTD, 
CR-39     

 
     


Abstract
Different rock samples collected from the Mountains located to the west and north of Sulaimani district. Solid state nuclear track detector technique, CR-39 passive detectors included, is used for analyzing concentrations Radon. The uranium concentrations determined from the secular equilibrium between uranium and radon activity. The concentrations of Radon and Uranium have been calculated. The maximum and the minimum concentrations determined (4774.524±17.665 and 224401.714)  Bq/m3  for Radon and (0.313±0.143 ppm, 14.728±6.731 ppm) for uranium, respectively. The higher concentration values of both Byara (Mountain of Balkha) and Penjween is due to sample rocks formation compared to the values appeared from Ranya and Chaqchaq regions. The highest annual effective dose was 0.8µSv/hr, which is higher than the value 1mSv ~ 0.114 µSv/hr recommended by the International Commission on Radiological Protection  ICRP.. 


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Ramyar Abdolrahman Taimur Ismail,
Jan 12, 2016, 8:28 AM