离子型稀土矿~(222)Rn、~(220)Rn、γ辐射水平调查

• 作 者: 王春红 廖海涛 武奕华
• 机 构: 辐射安全研究所,
• 出 处: 中国原子能科学研究院年报
• 发表日期: 2014年00期
• 关键词: 离子型稀土 Rn γ辐射 呼吸带 剂量当量 地面高度 测氡仪 剂量率 浓度测量 参考数据

为了解离子型稀土矿的~(222)Rn、~(220)Rn、γ辐射水平,为稀土矿辐射监管提供参考数据,2014年11月,采用RAD7连续测氡仪和X、7辐射剂量当量率仪(型号AT1121),对两座稀土矿进行了~(222)Rn、~(220)Rn、γ辐射水平的现场测量,~(222)Rn、~(220)Rn浓度测量距地面高度为人呼吸带高度,γ剂量率测量距待测对象约1 m,测量结果列于表1。

In order to understand the ~ (222) Rn, ~ (220) Rn and γ radiation levels of ion-type rare earth ores, a reference data was provided for the radiation regulation of rare earth ores. In November 2014, RAD7 continuous radon detector and X7 radiation dose equivalent (222) Rn, ~ (220) Rn, γ radiation were measured on two rare earth mines. The concentrations of ~ (222) Rn and ~ (220) Rn were measured from the ground Respiratory zone height, γ dose rate measurements from the measured object about 1 m, the measurement results are shown in Table 1.