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Title: Liner Stability Experiments at Pegasus: Diagnostics and Experimental Results

Abstract

A series of experiments to compare imploding liner performance with magneto-hydrodynamic (MHD) modeling has been performed at the Los Alamos National Laboratory Pegasus II pulse power machine. Liner instability growth originating from initial perturbations machined into the liner has been observed with high resolution. Three major diagnostics were used: radiography, Velocity Interferometer for a Surface of Any Reflector (VISAR), and fiber optic impact pins. For radiography, three flash x-ray units were mounted radially to observe liner shape at three different times during the implosion. Liner velocity was measured continuously with the VISAR for the entire distance traveled in two experiments. Optical impact pins provide a high-resolution measure of liner symmetry and shape near the end of travel. Liner performance has compared well with predictions.

Authors:
; ;
Publication Date:
Research Org.:
Los Alamos National Lab., NM (US)
Sponsoring Org.:
USDOE Office of Defense Programs (DP) (US)
OSTI Identifier:
759334
Report Number(s):
LA-UR-98-4497
TRN: US0004334
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: VIIIth International Conference on Megagauss Magnetic Field Generation and Related Topics, Tallahassee, FL (US), 10/18/1998--10/23/1998; Other Information: PBD: 18 Oct 1998
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; LINERS; PERFORMANCE; TEST FACILITIES; LANL; MAGNETOHYDRODYNAMICS

Citation Formats

Clark, D.A., Morgan, D.V., and Rodriguez, G. Liner Stability Experiments at Pegasus: Diagnostics and Experimental Results. United States: N. p., 1998. Web.
Clark, D.A., Morgan, D.V., & Rodriguez, G. Liner Stability Experiments at Pegasus: Diagnostics and Experimental Results. United States.
Clark, D.A., Morgan, D.V., and Rodriguez, G. Sun . "Liner Stability Experiments at Pegasus: Diagnostics and Experimental Results". United States. https://www.osti.gov/servlets/purl/759334.
@article{osti_759334,
title = {Liner Stability Experiments at Pegasus: Diagnostics and Experimental Results},
author = {Clark, D.A. and Morgan, D.V. and Rodriguez, G.},
abstractNote = {A series of experiments to compare imploding liner performance with magneto-hydrodynamic (MHD) modeling has been performed at the Los Alamos National Laboratory Pegasus II pulse power machine. Liner instability growth originating from initial perturbations machined into the liner has been observed with high resolution. Three major diagnostics were used: radiography, Velocity Interferometer for a Surface of Any Reflector (VISAR), and fiber optic impact pins. For radiography, three flash x-ray units were mounted radially to observe liner shape at three different times during the implosion. Liner velocity was measured continuously with the VISAR for the entire distance traveled in two experiments. Optical impact pins provide a high-resolution measure of liner symmetry and shape near the end of travel. Liner performance has compared well with predictions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {10}
}

Conference:
Other availability
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