Deflagration-to-detonation transition in inertial-confinement-fusion baseline targets

Journal Article · Mon Nov 01 00:00:00 EST 2004 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PhysRevE.70.055401· OSTI ID:20636858

Gauthier, P; Chaland, F; Masse, L ^[1]

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1. Commissariat a l'Energie Atomique-Direction des Applications Militaires Ile de France, Boite Postale 12, 91680 Bruyeres le Chatel (France)

By means of highly resolved one-dimensional hydrodynamics simulations, we provide an understanding of the burn process in inertial-confinement-fusion baseline targets. The cornerstone of the phenomenology of propagating burn in such laser-driven capsules is shown to be the transition from a slow unsteady reaction-diffusion regime of thermonuclear combustion (some sort of deflagration) to a fast detonative one. Remarkably, detonation initiation follows the slowing down of a shockless supersonic reaction wave driven by energy redeposition from the fusion products themselves. Such a route to detonation is specific to fusion plasmas.

• OSTI ID: 20636858
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 70, Issue 5; Other Information: DOI: 10.1103/PhysRevE.70.055401; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMBUSTION
EXPLOSIONS
HYDRODYNAMICS
INERTIAL CONFINEMENT
LASERS
ONE-DIMENSIONAL CALCULATIONS
PLASMA
PLASMA HEATING
PLASMA SIMULATION
PLASMA WAVES
SLOWING-DOWN