thermal critical assembly

Pulsed neutron neutron (PNN) logging measures formation parameters of oil saturation and porosity, through relation of thermal neutron population changing with time in the formation by its own unique processing and interpreting methods.

脉冲中子-中子(PNN)测井是利用直接测量热中子通量进而计算剩余油饱和度的测井技术。

The spectral analysis of thermal neutron captured prompt gamma ray combining with geochemical closure model is the key technique in geochemical logging.

测井技术，１９９５，１９（４）：２９４～２９９本文指出一种地球化学闭合模型的热中子瞬发活化伽马分析方法，它是地球化学测井的核心技术，而标准谱的获得、基于标准借的加权最小二乘解谱方法、灵敏度刻度及地球化学闭合模型是这一方法的关键环节。

Thermal neutron radiography is a useful complementary tool of the other non-destructive testing methods for the hydrogenous materials and heavy metal subassembly,and thermal neutron tomography has not been developed in China.

热中子照相技术在检测含氢材料、重金属等样品方面是X射线等其他无损检测技术的有益补充,热中子层析照相技术研究在国内尚是空白。

Objective To detect the susceptibility of urogenital chlamydia trachomatis(CT)to four kinds of Qingre traditional Chinese medicines.

目的了解白头翁、大青叶、玄参、知母四味清热中药体外抗泌尿生殖道沙眼衣原体的活性。