Radiation transport and energetics of laser-driven half-hohlraums at the National Ignition Facility
- Directorate Science and Technology, AWE Aldermaston, Reading (United Kingdom)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- General Atomics, San Diego, CA (United States)
Experiments that characterize and develop a high energy-density half-hohlraum platform for use in bench-marking radiation hydrodynamics models have been conducted at the National Ignition Facility (NIF). Results from the experiments are used to quantitatively compare with simulations of the radiation transported through an evolving plasma density structure, colloquially known as an N-wave. A half-hohlraum is heated by 80 NIF beams to a temperature of 240 eV. This creates a subsonic di usive Marshak wave which propagates into a high atomic number Ta2O5 aerogel. The subsequent radiation transport through the aerogel and through slots cut into the aerogel layer is investigated. We describe a set of experiments that test the hohlraum performance and report on a range
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE; UK Ministry of Defence
- DOE Contract Number:
- AC52-07NA27344
- OSTI ID:
- 1177269
- Report Number(s):
- LLNL-JRNL-642974
- Journal Information:
- Physics of Plasmas, Vol. 21, Issue 6; ISSN 1070-664X: PHPAEN
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
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