Misdaq M A, Outeqablit K
Nuclear Physics and Techniques Laboratory, Faculty of Sciences Semlalia, BP. 2390, University Cadi Ayyad, Marrakech, Morocco.
Radiat Prot Dosimetry. 2010 Dec;142(2-4):136-45. doi: 10.1093/rpd/ncq275. Epub 2010 Oct 29.
(238)U, (232)Th, (222)Rn and (220)Rn concentrations were measured inside various Moroccan black soap samples widely used by the Moroccan population in traditional baths (Hammans) by using both CR-39 and LR-115 type II solid state nuclear track detectors. The measured (238)U, (232)Th, (222)Rn and (220)Rn concentrations, respectively, ranged from (3.7 ± 0.2) to (11.7 ± 0.7) mBq kg(-1), (0.11 ± 0.01) to (0.32 ± 0.02) mBq kg(-1), (3.8 ± 0.2) to (11.6 ± 0.6) Bq kg(-1) and (0.10 ± 0.01) to (0.31 ± 0.02) Bq kg(-1) for the Moroccan black soap samples studied. The influence of pollution on the concentrations of these radionuclides inside the considered Moroccan black soap was investigated. A new dosimetric model for evaluating annual committed effective doses due to (238)U, (232)Th and (222)Rn to the skin of different age groups of the Moroccan populations from the application of the black soap samples studied was developed. The maximum total committed effective dose to the skin due to (238)U, (232)Th and (222)Rn from the application of unpolluted black soap samples 20 min per week by the Moroccan populations was found to be equal to (0.88 ± 0.05) μ Sv y(-1) cm(-2).
使用CR - 39和II型LR - 115固态核径迹探测器，对摩洛哥民众在传统浴室（哈曼斯）广泛使用的各种摩洛哥黑肥皂样本中的(238)U、(232)Th、(222)Rn和(220)Rn浓度进行了测量。在所研究的摩洛哥黑肥皂样本中，测得的(238)U、(232)Th、(222)Rn和(220)Rn浓度分别在(3.7 ± 0.2)至(11.7 ± 0.7) mBq kg(-1)、(0.11 ± 0.01)至(0.32 ± 0.02) mBq kg(-1)、(3.8 ± 0.2)至(11.6 ± 0.6) Bq kg(-1)以及(0.10 ± 0.01)至(0.31 ± 0.02) Bq kg(-1)范围内。研究了污染对所考虑的摩洛哥黑肥皂中这些放射性核素浓度的影响。开发了一种新的剂量学模型，用于评估摩洛哥不同年龄组人群因使用所研究的黑肥皂样本而受到(238)U、(232)Th和(222)Rn照射的年度待积有效剂量。发现摩洛哥民众每周使用未受污染的黑肥皂样本20分钟，因(238)U、(232)Th和(222)Rn对皮肤造成的最大总待积有效剂量等于(0.88 ± 0.05) μSv y(-1) cm(-2)。
