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该系统的样品收集室为直径24cm,高11.5cm带有空气进出口的园柱体,如图所示。可通过抽真空排除收集的气体。电极板与电压源相接用以造成所需要的静电场。用于收集氡子体的金属收集盘直径5cm、与电极板相连。
The system’s sample collection chamber is a cylinder with a diameter of 24 cm and a height of 11.5 cm with air inlet and outlet as shown. The gas collected can be evacuated by vacuuming. Electrode plates are connected to a voltage source to create the required electrostatic field. The metal collecting disc for collecting radon progeny has a diameter of 5 cm and is connected to the electrode plate.