Effects of Dopants on Laser Initiation Sensitivity of Explosives

摘要

The sensitivities of undoped and doped RDX, PETN and HMX with carbon black to Nd:YAG pulsed laser were investigated. The results show that pure RDX, PETN and HMX can not be initiated using free-running pulsed laser with energy of 550 mJ. Carbon black powder enhances the laser absorption of RDX, PETN and HMX apparently. Initiation threshold of these explosives can be reduced by doping a small amount carbon black powder. As the percent of carbon black increases, the initiation threshold has a minimum value.