1) BF 3 counter
BF3正比计数管
2) BF3 proportinal counte
三氟化硼(BF3)正比计数管
3) BF_3 counters
BF3计数管
4) proportional counter
正比计数管
1.
In order to execute reliable quantitative analysis of elements in a sample, a reasonable selection of the proportional counter, the radioactive source, and a proper geometry between them are very important.
正比计数管可广泛地用于Ｘ射线的能谱测量。
2.
A KX 50 butane flow proportional counter is described and its plateau characteristic is determined.
实验证明用丁烷作为流气式正比计数管的工作气体是可行的。
3.
A flowing gas proportional counter (FGPC) as the detector for astronomical observation in soft X-ray (0.
5keV)正比计数管探测器进行了系统地标定 。
5) proportional counter tube
正比计数管
1.
This paper studies on the convolution integral which is often used in time domain analysis through equivalent transforming proportional counter tube to current source,and analyzes output voltage of network containing proportional counter tube.
研究了将正比计数管等效为电流源后,应用时域分析中常用的卷积积分的方法,分析含正比计数管的网络的输出电压。
2.
In order to study the distribution characteristics of secondary electrons,proportional counter tube is used to detect secondary electrons distribution emitted by excitation of single primary electron under various gas components and pressure.
为了研究次级电子的分布规律，用充有各种不同组分和压力的气体的正比计数管探测单个初始电子及由此引起的次级电子数目的分布情况，其结果显示了次级电子脉冲分布不是一个简单的指数分布，在Ｅ／Ｐ值较低时有利于探测效果，是一个Ｆｕｒｙ分布；在Ｅ／Ｐ值较高时存在一个峰值，正比计数管工作电压越高，次级电子数目越多；气体分子的瞬时电离几率与次级电子数目和二次光电效应等因素有关。
6) BF3 long counter
BF3长计数器
1.
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。
2.
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。
补充资料：正比
1.两个事物或一事物的两个方面，一方发生变化，其另一方随之起相应的变化，如儿童随着年龄的增长体力也逐渐增长，就是正比。 2.当两个量的比是一个常数，这种关系叫做正比。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条