Determination of radon and thoron concentration in samples from southern marshes of Iraq by SSNTDs technique | ||
| basrah journal of science | ||
| Article 1, Volume 30, Issue 2, October 2012, Pages 151-160 PDF (0 K) | ||
| Authors | ||
| Numan .S.Hashim; ; | ||
| Abstract | ||
| many samples of water ,sediment and plant have been collected from southern marshes of Iraq to determine radon concentration Long-term technique for alpha particles emission with solid state nuclear track detectors (SSNTDs) Type CR-39 and LR-115 type II were used in closed cylinder technique. Each sample is placed in a closed cylinder plastic container. The result showed that radon concentration in sediment samples were ranged between minimum value (872.457 Bq.m-3 ) in Al-chebaish marsh and maximum value (4436.243 Bq.m-3) in Al-hawizah marsh which situated in the allowed level of radon concentration in soil. The radon concentration in water samples were ranged between minimum value (315.471 Bq.m3) in Al-chebaish and Al-hawizah marsh and maximum value (1744.914 Bq.m-3) in Al-hamar marsh which situated in the allowed level of radon concentration in water. The radon concentration in Beach sand samples were ranged between minimum value( 315.471 Bq.m3) in Al-hamar marsh and maximum value (3415.871 Bq.m3) in Al-hawizah marsh. In general we found that the radon activity concentration in sediment ,water and plant under studies are in the range of allowed level . | ||
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