Streaked laser shadowgraphy of tungsten wire array implosions on the Saturn generator

Journal Article · Wed Jan 01 00:00:00 EST 1997 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1147757· OSTI ID:451826

Deeney, C; McGurn, J; Noack, D; Porter, J L; Spielman, R B; Seamen, J F; Jobe, D O; Vargas, M F; Gilliland, T; Douglas, M R; Matzen, M K ^[1]

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1. Sandia National Laboratory, Albuquerque, New Mexico 87185-1194 (United States)

A combination of a 400 ns, 300 mJ, 640 nm dye laser, and an optical streak camera have been used to demonstrate that time-resolved shadowgrams can be made of the implosion phase of tungsten wire arrays. Initial experiments have shown that mirror lifetime and spatial resolution are issues for this diagnostic technique. Nonetheless, these experiments have provided new information on wire array dynamics; specifically, they show that even with a 0.46 mm wire spacing, the high density regions formed by the wires, are separate until 30 ns into the main drive current. Peak currents of 6.6 MA were obtained 40 ns after the start of the current, while peak radiated powers of 85 TW were measured at 50 ns. {copyright} {ital 1997 American Institute of Physics.}

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 451826
• Report Number(s): CONF-960543-; ISSN 0034-6748; TRN: 97:006196
• Journal Information: Review of Scientific Instruments, Vol. 68, Issue 1; Conference: 11. annual high-temperature plasma diagnostics conference, Monterey, CA (United States), 12-16 May 1996; Other Information: PBD: Jan 1997
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
LASER IMPLOSIONS
STREAK PHOTOGRAPHY
STREAK CAMERAS
PLASMA DIAGNOSTICS
PLASMA PRODUCTION
EXPLODING WIRES
PULSE GENERATORS
TUNGSTEN
VISIBLE RADIATION
PINCH EFFECT
DYE LASERS
LASER RADIATION
SPATIAL RESOLUTION
TIME RESOLUTION
IMAGES
measurement by laser beam
pulsed power technology
X-ray production
Z pinch
high-speed optical techniques