GD—L2型流气式固体氡源标定测氡仪的方法及影响因素浅析  

GD—L2 Flow-type Solid radon Source Calibration Factors of Radon Measurement Instrument and Its Influence

作　　者：杜文勇[1] 

机构地区：[1]宁夏回族自治区地震局,宁夏银川750001

出　　处：《防灾科技学院学报》2013年第3期67-71,共5页Journal of Institute of Disaster Prevention

摘　　要：GD—L2型流气式固体氡源具有操作简便、体积小、易携带、氡产生率较稳定的性能,与RN—150型负压氡源相比较,它最大的特点就是常压下开放式采样,标定K值的准确度往往受操作熟练程度和气压等气候条件的影响。为减小误差提高K值准确度,标定时采用"双连法"对被标仪器和闪烁室进行采样,根据标定时当地的气压和温度对恒流采样泵流速进行改正,实地验证气压等因素对标定结果的影响,本文还对标定方法和技巧进行定性分析和阐述。GD--L2 flow-type solid radon seed is easily operated, small in volume, convenient to carry, and can produce stable radon. The most important advantage of GD--L2 flow-type solid radon seed is that open sampling could be carried out at atmospheric pressure and the K value is always affected by operation proficiency and environment condition, compared with RN--150 radon seed. In order to reduce error and improve the precision of the K value, the double cell method and sampling-pump flow correction are used during the calibrating, and in this paper a qualitative analysis of calibration is conducted.

关 键 词：GD—L2型流气式固体氡源 标定方法 注意事项 气压温度改正 

分 类 号：P315.72[天文地球—地震学]