薄壳中快离子的激光驱动电动力学内爆

IF 4.8 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Matter and Radiation at Extremes Pub Date : 2023-08-11 DOI:10.1063/5.0156113

S. Gus’kov, P. Korneev, M. Murakami

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引用次数: 1

摘要

激光驱动的次相对论高密度离子流的碰撞提供了一种产生极压缩离子聚集体并研究其性质的方法。本文从理论上研究了飞秒佩瓦激光脉冲辐照空心球壳或圆柱壳内离子的电动力学内爆。我们提出了一种非常有效的离子加速机制，基于激光加速的快速电子在薄壳附近的自洽场中的振荡，具有强电荷分离。在强激光脉冲的照射下，壳层外侧产生快电子。结果表明，当用1021 ~ 1023 W cm−2的飞秒激光脉冲照射亚微米壳层时，离子，特别是质子，在内爆阶段可以被加速到几十到几百MeV的能量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Laser-driven electrodynamic implosion of fast ions in a thin shell

Collision of laser-driven subrelativistic high-density ion flows provides a way to create extremely compressed ion conglomerates and study their properties. This paper presents a theoretical study of the electrodynamic implosion of ions inside a hollow spherical or cylindrical shell irradiated by femtosecond petawatt laser pulses. We propose to apply a very effective mechanism for ion acceleration in a self-consistent field with strong charge separation, based on the oscillation of laser-accelerated fast electrons in this field near the thin shell. Fast electrons are generated on the outer side of the shell under irradiation by the intense laser pulses. It is shown that ions, in particular protons, may be accelerated at the implosion stage to energies of tens and hundreds of MeV when a sub-micrometer shell is irradiated by femtosecond laser pulses with an intensity of 1021–1023 W cm−2.

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来源期刊

Matter and Radiation at Extremes Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

8.60

自引率

9.80%

发文量

160

审稿时长

15 weeks

期刊介绍： Matter and Radiation at Extremes (MRE), is committed to the publication of original and impactful research and review papers that address extreme states of matter and radiation, and the associated science and technology that are employed to produce and diagnose these conditions in the laboratory. Drivers, targets and diagnostics are included along with related numerical simulation and computational methods. It aims to provide a peer-reviewed platform for the international physics community and promote worldwide dissemination of the latest and impactful research in related fields.