Late-time simulation of National Ignition Facility hohlraums

Autor:	M. T. Tobin, Alice Koniges, D. C. Eder, M. M. Marinak, B. J. MacGowan, O. S. Jones
Rok vydání:	2004
Předmět:	Physics Nuclear and High Energy Physics business.industry Multiphysics Shields Condensed Matter Physics Arbitrary lagrangian eulerian Computational physics LASNEX Optics Hohlraum Radiation hydrodynamics Energy spectrum National Ignition Facility business
Zdroj:	Nuclear Fusion. 44:709-719
ISSN:	1741-4326 0029-5515
Popis:	The late-time (t ≥ 80 ns) behaviour of hohlraums designed for the National Ignition Facility (NIF) is simulated using the multiphysics radiation hydrodynamics codes LASNEX and HYDRA. The spatial distribution of x-radiation outside the hohlraum is shown as a function of time. The energy spectrum of the x-ray emission is presented for various hohlraum viewing angles. We have made refinements to the grid motion algorithms in the arbitrary Lagrangian Eulerian (ALE) hydrodynamics code HYDRA to obtain the first late-time simulations of a hohlraum that can be used to give the spatial distribution of the vaporized hohlraum wall. The importance of late-time simulations in determining the lifetimes of debris shields on NIF is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::720299ed027b647beae40626c65d63ce https://doi.org/10.1088/0029-5515/44/7/003 Zobrazit plný text záznamu