Rayleigh-Taylor instability growth rates in targets accelerated with a laser beam smoothed by induced spatial incoherence

Journal Article · Mon Jun 22 00:00:00 EDT 1987 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.58.2672· OSTI ID:6489071

Grun, J; Emery, M H; Manka, C K; Lee, T N; Mclean, E A; Mostovych, A; Stamper, J; Bodner, S; Obenschain, S P; Ripin, B H

Growth rates of the Rayleigh-Taylor instability in foils accelerated with a laser beam smoothed by induced spatial incoherence were measured and compared with hydrodynamic code simulations. Modes with 150- and 100-..mu..m wavelengths grew at predicted rates. However, no growth was experimentally observed at a 50-..mu..m wavelength. Code simulations suggest that induced spatial incoherence can influence the 50-..mu..m Rayleigh-Taylor mode by delaying the start of its growth.

• Research Organization: Naval Research Laboratory, Washington, DC 20375
• OSTI ID: 6489071
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 58:25
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
LASER-PRODUCED PLASMA
PLASMA DIAGNOSTICS
RAYLEIGH-TAYLOR INSTABILITY
ACCELERATION
CORRELATIONS
FOILS
INSTABILITY GROWTH RATES
LASER RADIATION
TARGETS
ELECTROMAGNETIC RADIATION
INSTABILITY
PLASMA
RADIATIONS
700107* - Fusion Energy- Plasma Research- Instabilities
700102 - Fusion Energy- Plasma Research- Diagnostics