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一、实验原理简述脉冲中子源方法的实验原理在许多文献中已有报导。由于重水反应堆存在光中子效应,瞬发中子寿命长,表征衰减特性的时间常数α_0小,因而在重水堆上应用脉冲中子源技术在实验安排和数据处理方面均有它特有的问题。为解决这些问题我们作了以下努力。α方法
First, the experimental principle A brief description of the experimental principle of pulsed neutron source method has been reported in many literatures. Due to the existence of photon neutron effect in heavy water reactor, the instantaneous neutron lifetime is long, and the time constant α_0 characterizing the attenuation characteristic is small. Therefore, the application of pulsed neutron source technology in heavy water reactor has its own unique problems in experimental arrangement and data processing. We have made the following efforts to solve these problems. α method