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Measurement and simulation of apertures on Z hohlraums

Conference ·
OSTI ID:291166
; ;  [1]
  1. Los Alamos National Lab., NM (United States); and others

The authors 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 subjects to the development of highly nonlinear perturbations (jets) as a result of shocks converging near the edge of the aperture. These experiments have been simulated using Lagrangian and Eulerian radiation hydrodynamics codes.

Research Organization:
Los Alamos National Lab., NM (United States); Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-36; AC04-76DP00789
OSTI ID:
291166
Report Number(s):
LA-UR--98-2354; CONF-980605--; ON: DE99001136
Country of Publication:
United States
Language:
English

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