Laser-driven miniature flyer plates for shock initiation of secondary explosives
Miniature flyer plates (<1-mm diameter X <5-micron thick) of aluminum and other materials are accelerated by a 10-ns pulsed Nd:YAG laser to velocities >5 km/s. Velocity profiles are recorded by velocity interferometry (VISAR) techniques and impact planarity by electronic streak photography. Techniques for improving energy coupling from laser to flyer plate will be discussed. Flyer plate performance parameters will be compared with material properties. The P/sup n/t criteria for shock initiation of explosives will be compared for various flyer materials, pressure, and pulse duration. Performance of secondary explosives (PETN, HNS, HMX, various PBX, others) will be reported. These data will detail the experimental effect of t (in P/sup n/t) approaching values of a few nanoseconds. 9 refs., 5 figs.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5634240
- Report Number(s):
- LA-UR-89-2723; CONF-890812-21; ON: DE89016587
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
450100* -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
ALUMINIUM
CHEMICAL EXPLOSIVES
DETONATIONS
ELEMENTS
ESTERS
EXPLOSIVES
LASERS
METALS
NEODYMIUM LASERS
NITRATES
NITRIC ACID ESTERS
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PERFORMANCE TESTING
PETN
PHOTOGRAPHY
SHOCK WAVES
SOLID STATE LASERS
STREAK PHOTOGRAPHY
TESTING