An overview on measurements of natural radioactivity in Malaysia

被引：52

作者：

Ahmad, Nisar ^{[1
]}

Jaafar, Mohamad Suhaimi ^{[1
]}

Bakhash, Muhammad ^{[1
]}

Rahim, Muhammad ^{[2
]}

机构：

[1] Univ Sains Malaysia, Sch Phys, Pulau Penang 11800, Malaysia

[2] Univ Sains Malaysia, Sch Chem Sci, Pulau Penang 11800, Malaysia

来源：

JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES | 2015年 / 8卷 / 01期

关键词：

HPGe; NaI; Soil; Radioactivity;

D O I：

10.1016/j.jrras.2014.12.008

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Humans are always exposed during their lives to ionizing radiation arising outside and within the earth. The exposure to these radiation occurs from natural sources such as radioactive elements in rocks and soil, internal exposure form radioactive elements through water, food and air and cosmic rays entering from outer space to earth's atmosphere. About 87% of the radiation dose received by human beings is due to natural radiation, it is essential to assess the radiation doses in order to control possible health effects from such natural sources. In this regard, a number of articles have been appeared for Malaysia in international research journals, which have been reviewed and complied in this article. Most of these articles are about the measurement of activity concentrations of primordial (U-238, Th-232, Ra-226 and K-40) and anthropogenic (Cs-137) radionuclide's and gamma dose rate in environmental samples using HPGe and NaI (Tl) survey meter. Copyright (C) 2014, The Egyptian Society of Radiation Sciences and Applications. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.

引用

页码：136 / 141

页数：6

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