在研究性重水堆物理启动期间,用断源法和落棒法测定了控制棒整根插入及部分插入的反应性价值。采用方波权重法处理断源(落棒)后堆内中子水平的衰减数据。这种处理方法,既不严格要求断源(落棒)前功率的稳定时间,也不要求在落棒法时瞬时落棒。 During the physical start-up of the research heavy water reactor, the reactivity value of the whole insertion and partial insertion of the control rod was determined by the method of breaking source and falling. The attenuation data of the neutron level in the heap after the fault source (falling bar) is processed by the square wave weighting method. This approach, neither strict requirements of the source (before falling) the stability of the power of time, it does not require the fall of the law when the instant bar.