background counting

美 [ˈbækɡraʊnd ˈkaʊntɪŋ]英 [ˈbækɡraʊnd ˈkaʊntɪŋ]

background counting

1

In this system , the background counting rate is 0.7/s and background efficiency ratio is 1.82/s for HPGe detector of 38.4 % relative efficiency in 100 ~ 2 000 keV energy range .

在100～2000keV能区，相对效率为38.4%的HPGe探测器积分本底计数率为0.7／s，本底效率比为1.82／s；
2

Effect of Background Counting on Reciprocal Extrapolation in Criticality Experiment

临界实验中本底计数对倒数外推临界质量的影响
3

The paper particularly introduces the effect of background counting on the reciprocal extrapolation method .

着重论述了本底计数对倒数外推方法的影响。
4

A high-sensitive scintillation chamber of 75 ml in volume with detection efficiency ~ 82 % and background counting rate ~ 0.09 cpm has been developed .

研究了一种容积为75ml的高灵敏的闪烁室，其探测效率～82%，本底计数率～0.09计数/min。
5

When reciprocal extrapolation method is used , if background counting is not deducted from the neutron counting , the extrapolated critical mass is larger than the practical one and the experiment process is dangerous ;

在外推临界时，中子计数若不减本底则外推的临界质量将偏大，临界实验过程是危险的；
6

Low background pulse counting assembly

低本底脉冲计数装置