一、绪言在过去,土壤中氡的探测是利用射气仪来实现的。近十年来,一种测氡的积分方法——α径迹法得到了广泛的应用。一般认为其找矿深度可达几十米到上百米。近几年来,一种新的积分测氡法——热释光法也得到了应用。1977年,美国西屋公司研制成了α-2型测铀装置,并获得了专利权。1979年,我们也研制成功了一种CaSO_4(Dy或Tm)——聚四氟乙 I. INTRODUCTION In the past, the detection of radon in the soil was carried out using a radiometer. In recent ten years, a method of measuring radon - α track method has been widely used. Generally believed that the prospecting depth up to tens of meters to hundreds of meters. In recent years, a new integral radon method - thermoluminescence method has also been applied. In 1977, the Westinghouse Company of the United States developed an α-2 uranium device and obtained the patent. In 1979, we also successfully developed a CaSO 4 (Dy or Tm) -polytetrafluoroethylene