带电粒子在绝缘固体中通过时,会在固体表面留下径迹。这些径迹极其微小,要用电子显微镜才能观察到,但是经过适当的处理,用一般光学显微镜也能观察到。这种现象自1958年被发现以来,目前已被广泛地用于带电粒子的探测,对留有带电粒子径迹的物体称为固体径迹探测器。 与核乳胶相比,固体径迹探测器具有一定优点,首先,固体上的径迹一旦形成,不象 When charged particles pass through an insulating solid, they will leave traces on the solid surface. These tracks are extremely small and can only be observed with an electron microscope, but can be observed with a normal light microscope after proper treatment. Since this phenomenon was discovered in 1958, it has been widely used for the detection of charged particles. The object with the track of charged particles is called the solid track detector. Compared with nuclear latex, solid track detector has some advantages, first, the track on the solid once formed, not like