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活化阈探测器法测量中子能谱,主要限于热能区和高能区(0.1MeV以上)的中子谱,其谱型与用不同方法所得的谱型相比差别不大,而中能区(0.55eV～0.1MeV)的谱型相差很远.其原因是缺乏适宜的中能中子的活化探测器。 把固体径迹探测器做为中能中子探测器,它与一组活化探测器结合起来可提供中子全能谱的数据,对现有一般活化探测器不能很好限制中能区域谱型的任意性有所改进。
Activation threshold detector method for measuring neutron energy spectrum is mainly limited to the neutron spectrum in the thermal energy region and the high energy region (0.1 MeV or more), and its spectral type is not significantly different from that obtained by the different methods. However, 0.55eV ~ 0.1MeV), which is due to the lack of an appropriate activation detector for neutrons. The solid track detector as a neutron detector, which combined with a group of activated detectors to provide neutron spectrum data, the general activation of conventional detectors can not be very good to limit the spectrum type Arbitrary improvement.