| 曾晋祥,曾锡慎,谭光享,麦维基.广东大亚湾核电站周围陆地环境γ辐射累积剂量水平[J].中华放射医学与防护杂志,1999,19(5):357-361 |
| 广东大亚湾核电站周围陆地环境γ辐射累积剂量水平 |
| Environmental accumulative gamma radiation dose in ambient areas of Daya Bay Nuclear Power Plant |
| 投稿时间：1998-03-05 修订日期：1998-05-05 |
| DOI： |
| 中文关键词: TLD 累积剂量 环境辐射 核电站 |
| 英文关键词: |
| 基金项目: |
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| 摘要点击次数: 2750 |
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| 中文摘要: |
| 目的 根据广东大亚湾核电站周围环境放射性本底调查大纲对其环境放射性水平作了累积剂量调查,以积累资料。方法 采用具有补偿器的玻璃管封CaSO4(Dy)和LiF(Mg,Cu,P)热释光探测器,在大亚湾核电站陆地80km范围内选定36个测点,进行一年4次连续布放测量γ辐射累积剂量。为保证测量结果准确可靠,对所用的TLD的性能和测读仪器均由质量保证单位进行性能检测和测读系统的考核比对。结果 大亚湾核电站周围地区环境γ辐射累积剂量率水平为：0～5km范围内为(94.6±28.2)μGy/mo;0～10km范围内(88.8±25.8)μGy/mo;0～20km范围内(84.4±27.1)μGy/mo;0～80km范围内(85.6±25.3)μGy/mo.结论 采用具有补偿器的玻璃管CaSO4和LiF(Mg,Cu,P)探测器测定环境γ射线累积剂量辐射水平是可行的；大多数测点累积辐射水平随季节变化波动小,与用RSS-111-100高压电离室瞬时测量结果比较符合。 |
| 英文摘要: |
| Objective The research was conducted in accordance with the investigation outline of environmental radiation background in ambient areas of Guangdong Daya Bay Nuclear Power Plant which defined the areas contents and items of the investigation. Methods CaSO4:Dy with compensator and LiF:Mg, Cu, P thermoluminescent dosimeters(CTLD) were used in this investigation. A total of 36 monitoring points in an area with a radius of 80 km outside the nuclear power plant were set up. Four surveys were conducted for three months of continuous measurement each. The quality assurance measures included that the TLD performance was tested by National Institute of Metrology and an intercomparison between TLD and a pressurized ionization chamber (CPIC) was conducted by the Laboratory of Industrial Hygiene Min-istry of Health，in Beijing reference exposure field.Results In the areas with radius of 0-5,0-10,0-20 and 0-80km, the monthly accumulative absorbed doses were 94.6±28.2,88.8±25.8, 84.0±27.land 85.6±25.3μGy, respectively. Conclusion Both TLDs are suitable for environmental radiation monitoring. The fluctuations of the measured values with the seasons at most monitoring points are small which is in agreement with the results measured by PIC. |
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