| 香港地区室内氡及环境γ辐射水平 |
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| 引用本文： | 罗达玲,杨健明,余君岳.香港地区室内氡及环境γ辐射水平[J].中山大学学报论丛,1992(2). |
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| 作者姓名： | 罗达玲 杨健明 余君岳 |
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| 作者单位： | 中山大学物理学系，香港城市理工学院，香港城市理工学院 |
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| 摘 要： | 采用活性炭吸附法测定了香港地区各类建筑物160个测量点的室内氡浓度。在上述筛选监测基础上,又在香港主要商业区选取居民住宅和工作场所数目相近的测量点,放置CR-39核径迹探测器和两种LiF热释光剂量计约3个月,测得71个测量点的室内平均氛浓度和v辐射空气吸收剂量率,各组测量结果均呈正态分布.
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| 关 键 词： | 室内氡浓度 核径迹 γ辐射剂量率 热释光剂量计 |
Indoor Radon and Environmental Gamma Radiation in Hong Kong |
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| Luo Daling,E C M Young,K N Yu.Indoor Radon and Environmental Gamma Radiation in Hong Kong[J].Supplement to the Journal of Sun Yatsen University,1992(2). |
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| Authors: | Luo Daling E C M Young K N Yu |
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| Institution: | Luo Daling;E C M Young;K N Yu Department of Physics |
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| Abstract: | The Screening measurements of radon concentration were carried out during the period July-October 1990 by means of the passive activated charcoal device in a total of the 160 sites in various buildings in Hong Kong. The arithmetic mean of the measured indoor radon concentrations is equal to 40.0Bq/m~3. Based on above experiment CR-39 unclear track detectors and LiF thermolumin- escence detectors were used to measure the average radon concentrations and gamma radiation dose rates in air respectively, over a period of three months (Feb.-Apr. 1991)ina total 71 sites which were selected from dwellings and work places in Hong Kong. The normal distributions have been obtained from these results. The arithmetic means of the indoos average radon concentrations in dwellings and working places were found to be 72.2Bq/m~3 and 155.4Bq/m~3 respectively, while thearithmetic means of gamma radiation dose rates were determined to be 213.0 nGy/h and 198.1 nGy/h respectively. |
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| Keywords: | indoor radon concentration nuclear track Gamma radiation dose rate thermoluminescence detector |
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