RESEARCH ON THE MECHANISM OF DETONATION OF THE PRIMARY HIGH EXPLOSIVE BY LASER AND THE INTERFEROMETRY OF THE EXPLOSION FLOW FIELD
Yan Dapeng, Miao Pengcheng, Wang Hailin, He Anzhi (Departmend of Applied Physics, East China Institute of Technology)
This paper studies experimentally the probability with a feeble YAG laser pulse to detonate or ignite the primary high explosive, and describes briefly the criteria of laser ignition or detonation from the point of view of the theory of laser heat detonation mechanism. By using large - aperture and long - path Fabry - Perot interferometer, serial-pulsed He- Ne laser and high speed record device, the time - serial interferograms of the explosive flow field and the combustion temperature field are obtained. With computer image processing, the propagation velocity of the shock wave is calculated quantitatively.