脉冲测量中的统计涨落对中子产额测量的影响

Statistic fluctuation from pulse neutron effects on absolute measurement of its yield

介绍了在用PMT闪烁探测器测量脉冲中子产额时,由于粒子的统计涨落而使脉冲波形呈现毛刺现象。根据实验中获得的实验数据,从实验和理论两个方面分析了统计涨落对产额绝对测量的影响。评定了在一定测量不确定度范围内脉冲中子产额绝对测量的准确性。

This paper introduces that the DT pulse neutron takes on the waveform with burred feature because of fluctuation of particle statistic when it is measured through the PMT scintillant detector. According to experiment data, this statistic fluctuation effecting on absolute measurement of neutron yield has been analyzed theoretically and experimentally. The veracity of absolute measurement is assessed availably to the degree of uncertainty in measurement.