Numerical Study of Carbon Nanofoam Targets for Laser-Driven Inertial Fusion Experiments

IF 1.1 4区 物理与天体物理 Q4 PHYSICS, APPLIED
A. Maffini, M. Cipriani, D. Orecchia, V. Ciardiello, A. Formenti, F. Consoli, M. Passoni
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引用次数: 0

Abstract

Porous materials have peculiar characteristics that are relevant for inertial confinement fusion (ICF). Among them, chemically produced foams are proved to be able to smooth the laser inhomogeneities and to increase the coupling of the laser with the target. Foams realized with other elements and techniques may prove useful as well for ICF applications. In this work, we explore the potential of a novel class of porous materials for ICF, namely, carbon nanofoams produced with the pulsed laser deposition (PLD) technique, by means of hydrodynamic numerical simulations. By comparison with a simulation of solid-density carbon, PLD nanofoams show a higher pressure at the shock front, which could make them potential good candidates as ablators for a capsule for direct-drive fusion.
激光驱动惯性聚变实验中碳纳米泡沫靶的数值研究
多孔材料具有与惯性约束聚变(ICF)相关的特殊特性。其中,化学制备的泡沫被证明能够平滑激光的不均匀性,增加激光与目标的耦合。用其他元素和技术实现的泡沫也可能对ICF应用有用。在这项工作中,我们通过流体动力学数值模拟探索了一类新型多孔材料的潜力,即用脉冲激光沉积(PLD)技术生产的碳纳米泡沫。通过与固体密度碳的模拟比较,PLD纳米泡沫在激波前显示出更高的压力,这可能使它们成为直接驱动聚变胶囊的烧蚀体的潜在候选者。
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来源期刊
Laser and Particle Beams
Laser and Particle Beams PHYSICS, APPLIED-
CiteScore
1.90
自引率
11.10%
发文量
25
审稿时长
1 months
期刊介绍: Laser and Particle Beams is an international journal which deals with basic physics issues of intense laser and particle beams, and the interaction of these beams with matter. Research on pulse power technology associated with beam generation is also of strong interest. Subjects covered include the physics of high energy densities; non-LTE phenomena; hot dense matter and related atomic, plasma and hydrodynamic physics and astrophysics; intense sources of coherent radiation; high current particle accelerators; beam-wave interaction; and pulsed power technology.
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