根据热中子测井、超热中子测井和密度测井，可以形成三种不同的核测井组合。
Three different nuclear logging combinations can be formed according to thermal neutron logging, epithermal neutron logging and density logging.
在此基础上，再研究井壁超热中子时间谱测井仪或井壁超热中子测井仪的工程参数。
The Monte Carlo calculating software packet was developed for wall epithermal neutron time-spectrometry logging on the basis of MCNP.
分析了上述11种元素所构成的单质、化合物和混合物的慢化特性，从中优选出可实现超热中子束的三种慢化材料。
Moderating character of simple substances, compounds and mixtures consisted of the optimized elements analyzed. three kinds of moderating materials were optimized for epithermal neutron beam.
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。
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。
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.
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