论文部分内容阅读
0°方向引出中子的旋转靶由于很难提供α粒子引出管道,因此,给用伴随粒子方法进行中子源强的精确测量带来了困难;而文献[1]中用的靶室由于束流斑点的中心与氚钛靶的几何中心偏离甚小,使它的应用受到了限制。为了满足快中子辐照和快中子活化分析等实验对靶子方面提出的要求,使中子源强能较长时间地稳定在10~(11)n/s水平,并且尽可能充分利用靶面,我们设计并调试好偏心固定靶靶室,改进了水冷系统,对于直径为5cm、活性区直径为4.4cm的氚钛靶,使用的半寿命由原来的6～12μA·h,提高到30～60μA·h。
Rotating target with 0 ° direction leads to difficulties in providing accurate measurement of neutron source intensity with the accompanying particle method because it is very difficult to provide α-particle extraction pipelines. However, the target chamber used in [1] The center of the flow spot deviates very little from the geometric center of the tritiated titanium target, limiting its use. In order to meet the requirements of targets in experiments such as fast neutron irradiation and fast neutron activation analysis, the neutron source energy can be stably stabilized at the level of 10-11 n / s for a long time and the target Surface, we designed and debug the eccentric fixed target chamber, improved water cooling system, for the diameter of 5cm, the active zone diameter of 4.4mm tritium titanium target, the use of half life from the original 6 ~ 12μA · h, to 30 ~ 60μA · h.