Time resolved study of light emitted by detonation arrival at the surface of high explosives in various environments
In search of a way to accurately measure time of arrival of detonation fronts, we have been using an electronic streak camera equipped with a light intensifier to record intensity-time histories of the light that is emitted when a detonation front emerges through the surface of high explosives in contact with various environments. Streak records at writing speeds up to 100 mm/..mu..s were obtained of detonations in air, argon, water and vacuum when the high explosive (HE) was either bare or covered with materials such as: aluminum silicofluoride (Al/sub 2/(SiF/sub 6/)/sub 3/), PETN powder, polymethyl methacrylate (PMM), glass, aluminum foils, transparent tape, black ink, potassium chloride crystals, sodium chloride crystals and lithium fluoride crystals. The result of this study is that we believe that we can measure the time of arrival of a detonation front at a bare HE surface in air to within a few nanoseconds. 12 refs., 10 figs., 1 tab.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6543306
- Report Number(s):
- UCRL-97701; CONF-880693-5; ON: DE89005657
- Resource Relation:
- Conference: 19. international ICT conference on combustion and detonation, Karlsruhe, F.R. Germany, 29 Jun 1988; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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CHEMICAL EXPLOSIVES
DETONATIONS
MEASURING METHODS
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AIR
ALUMINIUM SILICATES
ARGON
COATINGS
DETONATION WAVES
GLASS
LITHIUM FLUORIDES
OPTICAL PROPERTIES
PETN
PMMA
POTASSIUM CHLORIDES
SILICON FLUORIDES
SODIUM CHLORIDES
STREAK CAMERAS
WATER
ALKALI METAL COMPOUNDS
ALUMINIUM COMPOUNDS
CAMERAS
CHLORIDES
CHLORINE COMPOUNDS
ELEMENTS
ESTERS
EXPLOSIVES
FLUIDS
FLUORIDES
FLUORINE COMPOUNDS
GASES
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
LITHIUM COMPOUNDS
LITHIUM HALIDES
MEASURING INSTRUMENTS
NITRATES
NITRIC ACID ESTERS
NITROGEN COMPOUNDS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYACRYLATES
POLYMERS
POLYVINYLS
POTASSIUM COMPOUNDS
RADIATION DETECTORS
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SHOCK WAVES
SILICATES
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450100* - Military Technology
Weaponry
& National Defense- Chemical Explosions & Explosives