用于测量氡浓度的径迹蚀刻探测装置

摘要

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.%This paper describes the track-etch dosimetry system used by the National Radiological Protection Board for measuring radon concentrations in dwellings and in workplaces. It also considers the criteria which should be satisfied by an ideal radon dosimetry system aimed at large-scale assessments of the risk from inhalation of radon decay products in room air. The present NRPB track-etch dosimetry system is matched against the requirements of such and ideal system. There is a brief description of the role of screening measurementsie measurements designed to show whether there are dangerous levels of radon decay products in a house without giving an accurate assessment of their true long-term average concentration.