منابع مشابه
Shell mix in the compressed core of spherical implosions.
The Rayleigh-Taylor instability in its highly nonlinear, turbulent stage causes atomic-scale mixing of the shell material with the fuel in the compressed core of inertial-confinement fusion targets. The density of shell material mixed into the outer core of direct-drive plastic-shell spherical-target implosions on the 60-beam, OMEGA laser system is estimated to be 3.4(+/-1.2) g/cm(3) from time-...
متن کاملExperimental measurement of Au M-band flux in indirectly-driven double-shell implosions
Indirectly-driven double-shell implosions are being investigated as a possible noncryogenic path to ignition on the National Ignition Facility (NIF). In recent double-shell experiments, the inner shell trajectory was shown to exhibit a strong sensitivity to the temporal history of the M-band (2-5 keV) radiation emitted from the Au hohlraum wall. A large time-dependent discrepancy was observed b...
متن کاملEfficient Parallel Shell
We propose a slightly modified Unix shell where the user can explicitly or implicitly execute commands on different computers of a cluster. The shell redirects output and input of those different commands to and from the right hosts, for instance when the user uses the redirections | (pipe), > (write to a file) and < (read from a file). We use a simple model of remote execution implemented as a...
متن کاملAnalyzing the Structure of Shell Modulations Around Peak Compression of Spherical Implosions
Programs were created to analyze the structure of shell modulations at peak compression of spherical implosions. Measurements of the modulations were taken by using absorption of titanium-doped layers placed at distances 1,5,7, and 9 pm from the inner surface of 20 pm-thick plastic CH shells filled with 18 atm of D ~ H ~ gas. These nonuniformities were measured using ratios of monochromatic tar...
متن کاملEffects of fuel-shell mix upon direct-drive, spherical implosions on OMEGA.
Fuel-shell mix and implosion performance are studied for many capsule types in direct-drive experiments at OMEGA. The amount of mixing and the size of the mix region are inferred from charged-particle spectrometry data and confirmed with an experimentally constrained model. Measured yields and convergence ratios CR fall short of one-dimensional predictions, especially for low capsule fill press...
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ژورنال
عنوان ژورنال: Laser and Particle Beams
سال: 1989
ISSN: 0263-0346,1469-803X
DOI: 10.1017/s0263034600005966