国产与美国CR－39固体径迹探测器探测中子性能的比较研究

Comparison between home-made and American CR-39 type nuclear track detectors

用Ａｍ—Ｂｅ中子源照射国产ＳＹ－２型ＣＲ－３９与美国ＣＲ—３９固体径过探测器，在蚀刻时间较短时，测量它们表面径迹密度与蚀刻时间的变化，求得单位质量ＣＲ－３９中可蚀刻径迹数目，并在蚀刻时间较长时，测量两种ＣＲ－３９表面径迹密度的饱和值，对两种ＣＲ—３９探测器进行对比。测量表明，国产ＳＹ—２型ＣＲ—３９与美国ＣＲ－３９探测快中子的灵敏度在误差范围内符合，它们具有相同的快中子灵敏度。

Some basic properties of the home-made SY-2 CR-39 and American CR-39 NTD,such as surface track density-etching time relationship, maximum allowable track density per unit mass and saturated surface density, have been studied with an Am-Be neutron source,and their character istics are found to be similar.