设计了一个高探测灵敏度的中子扫描变像管。该管采用电子产额较高的聚乙烯加碘化铯中于阴极。阴极面积大（φ１０ｍｍ），不设置狭缝，电子束的交叉截面聚焦于ＭＣＰ的前表面。设计时间分辨率为４３ｐｓ，探测产额大于１×１０~８个烧蚀靶内爆中子。当靶到阴极距离为几十厘米时，也可用于测量爆推靶内爆中子能谱多普勒展宽，从而确定等离子体离子温度。 Design a neutron scanning tube with high detection sensitivity. The tube uses a higher electron yield of polyethylene plus cesium iodide in the cathode. Cathode area (φ10mm), without the slit, the electron beam cross-section focused on the front surface of the MCP. Design time resolution of 43ps, detection output is greater than 1 × 10 ~ 8 ablation target burst neutron. When the distance from the target to the cathode is several tens of centimeters, it can also be used to measure the Doppler spread of the neutron energy spectrum of the detonating target so as to determine the plasma ion temperature.