Measurement and simulation of apertures on Z hohlraums

Journal Article · Thu Dec 31 23:00:00 EST 1998 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1149354· OSTI ID:328543

Chrien, R E; Matuska, W Jr; Idzorek, G; Swenson, F J; Peterson, D L; Wilde, B H ^[1]; Porter, J L; Breeze, S P; Ruggles, L E; Simpson, W W; Vargas, M ^[2]

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1. Los Alamos National Laboratory, MS E526, Los Alamos, New Mexico, 87545 (United States)
2. Sandia National Laboratory, Albuquerque, New Mexico, 87185-1187 (United States)

We have performed aperture measurements and simulations for vacuum hohlraums heated by wire array implosions. A low-Z plastic coating is often applied to the aperture to create a high ablation pressure which retards the expansion of the gold hohlraum wall. However this interface is unstable and may be subject to the development of highly nonlinear perturbations ({open_quotes}jets{close_quotes}) as a result of shocks converging near the edge of the aperture. These experiments have been simulated using Lagrangian and Eulerian radiation hydrodynamics codes. {copyright} {ital 1999 American Institute of Physics.}

• OSTI ID: 328543
• Report Number(s): CONF-980605--
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 1 Vol. 70; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ABLATION
APERTURES
CAMERAS
GOLD
HYDRODYNAMICS
LASER-PRODUCED PLASMA
PLASMA DIAGNOSTICS
PLASMA JETS
PLASMA SIMULATION
PROTECTIVE COATINGS
SHOCK WAVES
WIRES
X-RAY EQUIPMENT