论文部分内容阅读
中子测水技术是原子能在国民经济领域里应用有显著成就的技术之一.近一二十年来,一些国家广泛地应用于农业和水利等方面,取得良好的效果.但进口设备目前比较贵,难以普及应用.中子测水技术最核心的部分是探头,即探测器.现在国际上常用的探测器主要有三种类型:~(10)BF_3正比管、~6Li玻璃闪烁体及~3He正比管.其中~3He正比管对热中子探测效率最高,但对γ射线不敏感,国内已开始研
Neutron water measurement technology is one of the technologies that atomic energy has achieved remarkable success in the field of national economy.For nearly two decades, some countries have achieved good results in agriculture and water conservancy etc. However, imported equipment is more expensive , It is difficult to popularize the application.The most central part of neutron water measurement technology is the probe, that is, the detector.Now there are three types of detectors commonly used in the world: ~ (10) BF_3 proportional tube, ~ 6Li glass scintillator and ~ 3He Tube which ~ 3He positive tube thermal neutron detection efficiency of the highest, but not sensitive to γ-ray, the country has begun to study