核能谱测量是低能核物理实验的基本方法之一。早期,人们采用单道分析器组成的谱仪系统来获取核能谱数据,它是通过定时逐点手动改变甄别阈直接对输入脉冲幅度按模拟量测量的办法来获取数据的,因此实验时间长、精度低。五十年代有了多道分析器,用ADC对输入脉冲进行编码,使用存贮器作为数据记录设备。多道分析器能立即对输入的物理事件进行统计分析,使实验时间大大缩短,精度亦有了提高,为获取核能谱数据 Nuclear spectrometry is one of the basic methods for low-energy nuclear physics experiments. In the early stage, people used the spectrometer system consisting of a single-channel analyzer to obtain nuclear spectrum data. The data was obtained by manually changing the screening threshold point by point and by directly measuring the input pulse amplitude by analog measurement. Therefore, the experiment time was long, Low accuracy. In the 1950s there were multiple analyzers that used ADCs to encode input pulses and use memory as a data recording device. Multi-channel analyzer can immediately input the physical events for statistical analysis, the experimental time greatly reduced, the accuracy has also been improved, in order to obtain nuclear energy spectrum data