金属壳线型炸药的射线照相检测技术

用Ｘ射线和中子射线照相技术，研究了金属与炸药结构构件的模拟缺陷，目前这种技术用于包壳外径为２ｍｍ银管内炸药线上人工点状缺陷的检测精度约为０．１ｍｍ，为小型复合结构件中微缺陷的检测技术的应用提供了依据，但中子射线照相技术的广泛应用受到中子源的限制。

RAY PHOTOGRAPHIC DETECTION OF METAL-CASED LINEAR EXPLOSIVE CHAKGE

This report describes the principle, method and characteristic of qualitative and quantitative nondestructive detection of defects in metal-cased linear explosive charge,and a comparison between x-ray and neutron photography is made as well. Some microdefects were deliberately made in the linear explosive charge cased in a silver tube with OD 7mm and ID 6mm to simulate the nondestructive detection of mild detonating fuse(MDF) and work out a detection procedure which can be used to examine the dot defects in MDF of OD 2mm with distinguish ability of 0.1mm.But the application of neutron photography is limited because the neutron source is very expensive except neuclear reactors.