Exploding bridge wire initiation of high explosives

Conference · Tue Dec 31 23:00:00 EST 1985

OSTI ID:6504976

Frank, A M

We are establishing a laboratory for the microscopic examination of exploding bridge wire (EBR) initiation of high explosives. In particular we wish to examine the partition of energy of the EBW and its mechanism(s) for transfer to high explosives (HE). We are using recently developed techniques in micro framing and streak photography and spectroscopy. At the present time we have built up a fireset and diagnostics and are comparing electrical burst data with that predicted by the FIRESET code. A high resolution 15ns framing camera is currently functional and has been used to examine self illumination effects. Three illumination systems are being prepared to provide single short pulse (2nS) laser illumination, multiple pulse laser illumination and long pulse (..mu..S) flashlamp illumination. These illuminators will allow various forms of direct micro-photography, shadow and Schlieren photography. These techniques will be used to provide direct measurement of shock velocities and histories. We are also investigating the direct measurement of pressure in and behind the shock using the spectral shift in the fluorescence of certain dyes. For this application we are building an intensified imaging spectrograph. We examine the status and plans of the laboratory and present some initial results.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6504976
• Report Number(s): UCRL-95507; CONF-8610286-1-Summ.; ON: DE87010872
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450100* -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
CHEMICAL EXPLOSIVES
DETONATIONS
DIAGNOSTIC TECHNIQUES
ELECTRIC BRIDGES
ELECTRICAL EQUIPMENT
EQUIPMENT
EXPLOSIVES
LASERS
PHOTOGRAPHY
PULSE TECHNIQUES
SHOCK WAVES
WIRES