A wedged-peak-pulse design with medium fuel adiabat for indirect-drive fusion

Journal Article · Wed Oct 15 00:00:00 EDT 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4898682· OSTI ID:22299642

Fan, Zhengfeng; Ren, Guoli; Liu, Bin; Wu, Junfeng ^[1]; He, X. T.; Liu, Jie; Wang, L. F.; Ye, Wenhua ^[1]

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1. Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China)

In the present letter, we propose the design of a wedged-peak pulse at the late stage of indirect drive. Our simulations of one- and two-dimensional radiation hydrodynamics show that the wedged-peak-pulse design can raise the drive pressure and capsule implosion velocity without significantly raising the fuel adiabat. It can thus balance the energy requirement and hydrodynamic instability control at both ablator/fuel interface and hot-spot/fuel interface. This investigation has implication in the fusion ignition at current mega-joule laser facilities.

• OSTI ID: 22299642
• Journal Information: Physics of Plasmas, Vol. 21, Issue 10; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CONTROL
DESIGN
HOT SPOTS
HYDRODYNAMICS
IMPLOSIONS
LASERS
PEAKS
PLASMA INSTABILITY
PULSES
SIMULATION
THERMONUCLEAR FUELS
THERMONUCLEAR IGNITION
TWO-DIMENSIONAL CALCULATIONS