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大流量采样中的滤材过滤效率测定广东省放射卫生防护所（广州市怡乐路，５１０２６０）麦维基，曾晋祥在环境放射性监测中，通常应用的取样方法是过滤法。在大气核试验或近地面空气的高浓度放射性核素环境监测中，以往一般采用低流量率的仪器设备采集空气气溶胶或飘尘样品...
Determination of Filtration Efficiency in Large Flow Sampling Guangdong Provincial Institute of Radiological Protection (Yilu Road, Guangzhou 510260) Mai Weiji and Zeng Jinxiang The sampling method commonly used in environmental radioactivity monitoring is filtration. In the atmospheric nuclear test or near-surface air high-concentration radionuclide environmental monitoring, the past generally low-flow rate instrument equipment to collect air aerosol or fly dust samples ...