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研制了一套数字化的反应堆物理启动仪器,该套仪器主要由探测器、数据采集电路、微型计算机及计算机数据处理软件组成,其中数据采集电路包括脉冲放大电路及计数器电路、多量程微电流放大电路及模数转换电路、数据传输电路。该仪器能够完成次临界外推、超临界内插、中心控制棒效率测量及径向燃料元件效率测量等实验。在微堆低浓化零功率实验中对该仪器的测量功能进行验证,实验结果验证了该仪器测量的准确性。
A set of digital reactor physics start-up instrument was developed. The set of instruments mainly consists of detector, data acquisition circuit, microcomputer and computer data processing software. The data acquisition circuit includes pulse amplification circuit and counter circuit, multi-range micro-current amplification circuit And analog-digital conversion circuit, data transmission circuit. The instrument can perform sub-critical extrapolation, supercritical interpolation, the efficiency of the central control rod measurement and radial fuel element efficiency measurement experiments. The measurement function of this instrument is verified in the micro-pile low-concentration zero-power experiment. The experimental results verify the accuracy of this instrument.