An assessment of the natural radioactivity distribution and radiation hazard in soil samples from Qatar using high-resolution gamma-ray spectrometry

被引：11

作者：

Al-Sulaiti, Huda ^{[1
,2
]}

Al Mugren, K. S. ^{[2
,3
]}

Bradley, D. A. ^{[2
,9
]}

Regan, P. H. ^{[2
]}

Santawamaitre, T. ^{[2
]}

Malain, D. ^{[2
]}

Habib, A. ^{[2
]}

Nasir, Tabassum ^{[2
,4
]}

Alkhomashi, N. ^{[2
,5
]}

Al-Dahan, N. ^{[2
,6
]}

Al-Dosari, M. ^{[7
]}

Bulzhari, S. ^{[8
]}

机构：

[1] Qatar Fdn, HBKU, QEERI, POB 5825, Doha, Qatar

[2] Univ Surrey, Dept Phys, Ctr Nucl & Radiat Phys, Guildford GU2 7XH, Surrey, England

[3] Princess Nora Bint Abdul Rahman Univ, Fac Sci, Phys Dept, Riyadh, Saudi Arabia

[4] Gomal Univ, Dept Phys, Dera Ismail Khan, Pakistan

[5] KACST, POB 6086, Riyadh 11442, Saudi Arabia

[6] Univ Kerbala, Coll Sci, Dept Phys, Kerbala, Iraq

[7] Minist Municipal & Environmen4, Radiat Protect & Chem Dept, POB 7634, Doha, Qatar

[8] Minist Municipal & Environment

[9] Sunway Univ, Inst Healthcare Dev, Jalan Univ, Pj 14650, Malaysia

来源：

RADIATION PHYSICS AND CHEMISTRY | 2017年 / 140卷

关键词：

Natural radioactivity; HPGe detector; Gamma spectrometry; Activity concentrations; U-238; Ra-226; K-40;

D O I：

10.1016/j.radphyschem.2017.05.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We establish baseline measurements for radioactivity concentration in the soil samples collected from the Qatarian peninsula. The work focused on the naturally occurring and technically enhanced levels of radiation associated with U-235,U-8 and Th-232 natural decay chains and the long-lived naturally occurring radionuclide K-40 in 129 soil samples collected across the landscape of the State of Qatar. Three radiological distribution maps showing the activity concentrations of Ra-226, Th-232 and K-40 were constructed. Two soil samples were found to be elevated to the favour of 226Ra concentration and significantly above the average and global values. Notably, these samples were collected from an area within an oil field (NW Dukhan). The mean values of activity concentrations of Ra-226, Th-232 and K-40 for the full cohort of samples were found to be 17.2 +/- 1.6, 6.38 +/- 0.26 and 169 +/- 5 Bq/kg, respectively. These values lie within the expected range relative to the world average values in soil samples of 30, 35 and 400 Bq/kg, respectively.

引用

页码：132 / 136

页数：5

共 5 条

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