| 1. | The numerical simulation of the coincidence counting is implemented by use of the mcnp4b package
利用mcnp4b程序实现了中子符合计数的数值模拟。 |
| 2. | Neutron coincidence counting is widely used in the authentication and management of nuclear material
摘要中子符合计数在核材料认证和管理中有着广泛的应用。 |
| 3. | Standard test method for nondestructive assay of plutonium in scrap and waste by passive neutron coincidence counting
无源中子复合计数法测定废弃物中钚的无损检验的标准试验方法 |
| 4. | The basic principles of coincidence counting and the derivation of " point model " formulae of " point model " are introduced in this paper
系统阐述了中子符合计数的基本原理，对“点模型”公式作了推导。 |
| 5. | This paper describes the principle of neutron yield measurement with icf activation taking example for cu 、 - coincidence counting system based on pxi , software configuration and function , the counting method of neutron yield and the calibration coefficient
摘要以铜为例介绍了中子产额活化法测量的原理、基于pxi的-符合计数系统、软件结构和功能、中子产额的计算与实验刻度因子标定等，最后结合实验测试结果对系统性能进行了分析。 |
| 6. | The results show that coincidence detection method has obvious benefit in detecting nuclear warheads . for the same type warhead , the coincidence counts rates of the model of warhead of heu pit is 10 times as big as that of fake warhead of natural uranium pit . if we know the nuclear warheads configuration by other methods , the method of coincidence neutron detection could be used to distinguis h the fake nuclear warheads from the reals
计算表明用探测符合中子的方法探测核弹头对区分真假核弹头有明显的优点，对于同一核弹头模型，裂变弹芯是高浓铀和用天然铀替代高浓铀时，符合中子计数相差1个量级，如通过其他途径了解核弹头的大致结构，符合测量的方法就可以有较高的置信度分辨真假核弹头。 |
| 7. | We use monte - carlo method to simulate the processes of neutron interrogating uranium by awcc with ^ am - li neutron source for calculating the relationship of neutron coincidence count rate vs . the thickness of uranium foils , the result shows that such standards can satisfy the demands of measurement
我们用蒙特卡罗（ monte rri rlo ）方法，就awcc具体条件模拟计算了铀标准样品厚度与中子符合计数率的关系。为了最终计算出中子的符合计数率，模拟计；算分h个步骤进行。 |
| 8. | The simulation can be divided into three processes sequentially : calculating the induced fission neutron rate of uranium and space distribution by mam - li neutron source , computing the total uranium fission neutron count rate and time distributions of 42 3he tubes , and calculating the neutron coincidence counting rate
第一步，以ain ? li源为中子源，计算铀的诱发裂变中子产生二率及空间分布；第二步，以铀的诱发裂变中子为中子源，计算化根’ ne管的总中子计数率及时间分布；第三步，计算中子符合计数率。 |
