中间量程裂变室信号处理计算方法研究及验证

Research and Validation of Intermediate Range Fission Chamber Signal Processing and Calculation Method

主要研究了一种用于堆外核测系统中间量程信号处理的逻辑算法,可实现裂变室输出的计数率信号和均方电压信号的修正和自动切换,并最终将裂变室输出信号转换为反应堆功率指示信号。本研究方法在国产化堆外核测系统堆上试验中进行应用与验证,输出信号可真实反映反应堆功率水平。本方法和试验结果可为堆外核测中间量程裂变室在商用压水堆的应用提供技术参考。

This paper mainly studies a logic algorithm for intermediate range signal processing of Nuclear Instrumentation System(NIS),for IR fission chamber output CPS and MSV signal to be corrected and switched automatically,and finally converted into reactor power indicator signal.This research method has been applied and verified in the domestic NIS reactor test,and the output signal can reflect the true power level of the reactor.This method and the test results can provide technical reference for the application of NIS IR fission chamber in commercial pressurized water reactors.