Some factors affecting the accuracy of uranium content determined by delayed neutron counting and methods to solve the problems are reported.
文章介绍了用缓发中子计数法测铀时遇到的一些影响测量结果准确度的因素和采用的解决办法。
Inside the sphere cavity, the ratio of ultra thermal neutron counting rate to thermal one is less than 10%, but the counting rates slightly depend on the position of thermal neutron detector.
球腔内超热与热中子计数比小于10%，计数率依赖于热中子探测器所在位置。
The angular response, the radial differential response, the energy response and the distribution of neutron counting rate inside sphere cavity are measured, and the effective centre is estimated.
测量了角响应、径向微分响应、能量响应及球腔内中子计数率分布，并估算了有效中心。
Neutron coincidence counting is widely used in the authentication and management of nuclear material.
中子符合计数在核材料认证和管理中有着广泛的应用。
The steady counting rates of neutron in reactor are measured by a conventional instrument(the start-up devices)to calibrate reactivity worth of a control rod.
利用常规仪器（堆控制室中的启动装置）测得反应堆中稳定的中子计数率来刻度控制棒的反应性当量。
A high sensitive neutron monitor is described in this paper. It has an approximate counting rate of 20 CPM for natural background neutrons.
本文介绍了一种高灵敏度中子监测器，它对天然中子本底的计数率约每分钟20次计数。
A new type of neutron detector which can avoid counting loss and carry out real-time measurement for pulsed neutron field will be introduced in the paper.
本文介绍了对脉冲中子辐射场探测和一种可以防止漏计数又可实时监测的中子探测器的研究。
A new type of neutron detector which can avoid counting loss and carry out real-time measurement for pulsed neutron field will be introduced in the paper.
本文介绍了对脉冲中子辐射场探测和一种可以防止漏计数又可实时监测的中子探测器的研究。
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