measuring clock

The method of calibrating scintillation detectorusing long counter in the pulse neutron measurement;

脉冲中子测量中用长计数器校准闪烁探测器的方法

The relative standard uncertainty of total fission number is 4% using BF3 long counters as detector.

用长计数器测量已知裂变率的缓发中子计数率,然后用同一探测系统测量脉冲后的缓发中子计数率,探测系统的探测效率、缓发中子份额和缓发中子先驱核半衰期等参数均不变,从而建立起利用脉冲堆脉冲后的缓发中子衰减曲线确定脉冲裂变总数的方法。

In this method, a scintillation detector and a long counter were used together.

介绍了采用长计数器与闪烁探测器相组合,通过长计数器对闪烁探浏器进行适时校准,进而以闪烁探测器给出低产额脉冲中子注量(或产额)的方法。

Using four nuclear reactions as neutron source,the relative efficiency of BF3 long counter in the neutron hall of 4.

5 MV静电加速器中子实验大厅的BF3长计数器的相对效率进行了刻度。

The neutron decay constant of a new type of boron-doping polyethylene material has been measured by SZJ-4 BF3 long counter and 252Cf neutron source.

采用SZJ-4型BF3长计数器和252Cf中子源测量了一种新型含硼聚乙烯材料的中子衰减系数∑,测量不确定度为4。