Radiation transport and energetics of laser-driven half-hohlraums at the National Ignition Facility

Moore, A. S.; Cooper, A. B.R.; Schneider, M. B.; MacLaren, S.; Graham, P.; Lu, K.; Seugling, R.; Satcher, J.; Klingmann, J.; Comley, A. J.; Marrs, R.; May, M.; Widmann, K.; Glendinning, G.; Castor, J.; Sain, J.; Back, C. A.; Hund, J.; Baker, K.; Hsing, W. W.; Foster, J.; Young, B.; Young, P.

doi:10.1063/1.4880558

Title: Radiation transport and energetics of laser-driven half-hohlraums at the National Ignition Facility

Journal Article · Sun Jun 01 00:00:00 EDT 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4880558· OSTI ID:1177269

Moore, A. S. ^[1]; Cooper, A. B.R. ^[2]; Schneider, M. B. ^[2]; MacLaren, S. ^[2]; Graham, P. ^[1]; Lu, K. ^[2]; Seugling, R. ^[2]; Satcher, J. ^[2]; Klingmann, J. ^[2]; Comley, A. J. ^[1]; Marrs, R. ^[2]; May, M. ^[2]; Widmann, K. ^[2]; Glendinning, G. ^[2]; Castor, J. ^[2]; Sain, J. ^[2]; Back, C. A. ^[3]; Hund, J. ^[3]; Baker, K. ^[2]; Hsing, W. W. ^[2] more »

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

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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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