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反应堆功率的测量,在堆功率高时一般用热工方法,功率低时,可用各种堆物理方法,如中子源引进法、中子统计法和全堆总裂变率法。 中子源引进法误差较大,中子统计法需知探测器在堆内的效率和堆的β_(aff)值,此二者都较难测量。全堆总裂变率法是由测量堆的总裂变率来求得堆功率,它可避免前面两种方法的缺点,但需依赖裂变率相对分布的
Reactor power measurement, when the reactor power is high, thermal methods are generally used. When the power is low, a variety of reactor physical methods, such as the neutron source introduction method, the neutron statistical method, and the full pile total fission rate method can be used. The introduction of neutron source error is large, neutron statistics need to know the efficiency of the detector in the reactor and heap β_ (aff) value, both of which are more difficult to measure. The total pile total fission rate method is to measure the total pile fission rate to find the pile power, it can avoid the shortcomings of the previous two methods, but depends on the relative distribution of the fission rate