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8223993 
Meetings & Symposia 
Laser initiated detonator - Recent developments 
Ewick, DW 
1997 
American Institute of Aeronautics and Astronautics Inc, AIAA 
English 
The DOT explosive BNCP requires significantly less confinement than secondary explosives such as HMX and has been proposed for use in laser initiated detonators. In tests performed to optimize the BNCP ignition charge, a fine particle recrystallized BNCP was evaluated along with an even finer ball-milled material. A lower all-fire threshold was obtained with the ball-milled BNCP. A carbon black concentration of 5% was found to be optimum. For a 10 ms laser diode pulse at -65°F, the.999 all-fire level (95% confidence) was found to be 366 mW. For a 5 minute laser diode pulse at +200°F, the no-fire level threshold was found to be 106 mW. Transition, or DOT, charge tests indicated that steady state detonation was achieved with a transition charge length of 0.180 in., although a significant dent output was produced from transition charge lengths as short as 0.060 in. © 1997 by the American Institute of Aeronautics and Astronautics. All rights reserved.