Initiation of PETN Explosion by the Second Harmonic Pulse of a Neodymium Laser
B. P. Aduev, D. R. Nurmukhametov, I. Yu. Liskov, R. I. Furega
Institute of Coal Chemistry and Chemical Materials Science, Siberian Branch, Russian Academy of Sciences, Kemerovo, 650000 Russia
Keywords: laser, explosion, PETN, two-photon absorption
Abstract
The explosion of PETN of density 1.73 g/cm3 was first initiated by the second-harmonic pulse of a Q-switched neodymium laser. It is shown that the primary process of energy absorption in this case is PETN molecule ionization involving two-photon absorption. The critical initiation energy density corresponding to a 50-% probability of explosion is 12.3 J/cm2.
|
