Research on Test of Linear Shaped Charge by Thermal Neutron Radiography

Thermal neutron radiography was applied to test the linear density of the explosive in the linear shaped charge (LSC) in order to determine the distribution uniformity and defective of the explosive. The clear images of some samples were obtained by means of thermal neutron radiography and processed to get the linear density of inner explosive. The defectives such as sparseness, gaps and cavities were shown clearly in the images. The method is more direct and simpler than other quality test methods for LSC, which is significant for the precise test for LSC and precise blasting. It is effective for quality test of cord type explosive device.