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在CARR投入正式运行之前,需要在物理启动阶段通过实验测量得到调节棒效率曲线,为反应堆安全运行提供数据,并校核CARR核设计。CARR控制棒栅包括4根调节棒/补偿棒(CR1、CR2、CR3、CR4),它们的位置是对称的,结构也是相同的,由于加工公差等原因,每一根棒的反应性价值可能有少许差别,但它们的反应性效率曲线的形状是相同的,设计上考虑4根棒中的任何一根棒都可以用来做调节棒,本实验中选取调
Before CARR is put into formal operation, it is necessary to experimentally measure the rod efficiency curve during the physical start-up phase to provide data for the safe operation of the reactor and check the CARR nuclear design. The CARR control grid consists of four adjustment rods / compensating rods (CR1, CR2, CR3, CR4) whose positions are symmetrical and of the same structure. The reactivity value of each rod may be due to machining tolerances, etc. A little difference, but their reactive efficiency curve is the same shape, the design is considered any one of the four rods can be used to make adjustment rod, the experiment selected tune