文章描述了NRPB用于测量居室和工作场所氡浓度的径迹蚀刻剂量学体系 ,并考虑了适用于大规模评价吸入室内空气中氡的衰变子体所致危险度的理想氡剂量学体系所应该满足的原则 .NRPB现用的径迹蚀刻剂量学体系满足这样理想体系的要求 .对筛选测量的原则进行了简要描述 .例如 ,为了弄清某一房间是否存在氡子体的危险水平 ,而又不需要给出它的长期真实平均值的测量 The article describes the track etch dosimetry system used by NRPB to measure radon concentrations in homes and workplaces and considers an ideal radon dosimetry system that is suitable for large-scale assessment of the risk posed by decay progeny of indoor radon inhalation The principle of satisfaction.NRPB’s current track-etching dosimetry system meets the requirements of such an ideal system.The principle of screening measurements is briefly described.For example, in order to find out if a room has a dangerous level of radon progeny, It does not need to be given a measure of its true long-term average