干旱区生态环境知识资源中心(Arid): Occupational Exposures during the U-Exploration Activities at Seila Area, South Eastern Desert, Egypt

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	Occupational Exposures during the U-Exploration Activities at Seila Area, South Eastern Desert, Egypt
	Abdel-Razek, Y. A.; Masoud, M. S.; Hanfi, M. Y.; El-Nagdy, M. S.
通讯作者	Abdel-Razek, YA
来源期刊	ARAB JOURNAL OF NUCLEAR SCIENCES AND APPLICATIONS
ISSN	1110-0451
出版年	2017
卷号	50 期号:2 页码:22-29
英文摘要	Twenty trenches distributed over a shear zone at Seila area, South Eastern Desert of Egypt were chosen to study the occupational exposures during the U-exploration activities in these trenches. The average value of the activity concentration of U-238, Th-232 and K-40 in the studied granites are 866, 57 and 1380 Bq.kg(-1) respectively. These values are higher than the worldwide average of 33, 45 and 412 Bq/kg. According to these activity concentrations, trenches are divided into the non-regulated and regulated categories. The average value of the annual effective dose due to the terrestrial radionuclides is 0.306 mSv for the non-regulated trenches and 0.958 mSv for the regulated trenches corresponding to the absorbed dose rate 219 nGy.h(-1) for the non-regulated trenches and 684 nGy.h(-1) for the regulated trenches. The average measured annual effective dose for non-regulated and regulated trenches is 0.81 and 1.42 mSv respectively. This difference is ascribed to the geometry of the studied trenches. However, the total annual effective dose in the non-regulated and the regulated trenches is lower than the recommended value of 20 mSv.
英文关键词	Occupational exposures-U-exploration-Annual effective dose
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000408118500003
WOS类目	Nuclear Science & Technology
WOS研究方向	Nuclear Science & Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332214
作者单位	[Abdel-Razek, Y. A.; Masoud, M. S.; Hanfi, M. Y.] Nucl Mat Author, Cairo, Egypt; [El-Nagdy, M. S.] Helwan Univ, Phys Dept, Fac Sci, Cairo, Egypt
推荐引用方式 GB/T 7714	Abdel-Razek, Y. A.,Masoud, M. S.,Hanfi, M. Y.,et al. Occupational Exposures during the U-Exploration Activities at Seila Area, South Eastern Desert, Egypt[J],2017,50(2):22-29.
APA	Abdel-Razek, Y. A.,Masoud, M. S.,Hanfi, M. Y.,&El-Nagdy, M. S..(2017).Occupational Exposures during the U-Exploration Activities at Seila Area, South Eastern Desert, Egypt.ARAB JOURNAL OF NUCLEAR SCIENCES AND APPLICATIONS,50(2),22-29.
MLA	Abdel-Razek, Y. A.,et al."Occupational Exposures during the U-Exploration Activities at Seila Area, South Eastern Desert, Egypt".ARAB JOURNAL OF NUCLEAR SCIENCES AND APPLICATIONS 50.2(2017):22-29.