The interaction of intense, ultra-short microwave beams with the plasma generated by gas ionization
The interaction of intense, ultra-short microwave beams with the plasma generated by gas ionization
复制标题
强超短微波束与气体电离产生的等离子体的相互作用
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Y. Krasik
中科院分区：
文献类型：
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作者：
G. Shafir;Yang Cao;Y. Bliokh;J. Leopold;D. Levko;V. Rostov;R. Gad;A. Fisher;V. Bernshtam;Y. Krasik
给出了极短（0.6 ns）高功率（~ 500 MW） x波段聚焦微波束与气体电离产生的等离子体非线性相互作用的结果。在一定的气体压力范围内，特定于气体类型，微波束轴周围的等离子体密度明显低于其周边，从而形成引导通道，使光束自聚焦。在这些压力范围之外，可以观察到漫射或流状等离子体。我们还观察到高能电子（~ 15 keV），由非常高的功率微波加速。对该复杂动力系统的简化分析模型和颗粒胞内数值模拟证实了实验结果。
Results of the non-linear interaction of an extremely short (0.6 ns) high power (∼500 MW) X-band focused microwave beam with the plasma generated by gas ionization are presented. Within certain gas pressure ranges, specific to the gas type, the plasma density is considerably lower around the microwave beam axis than at its periphery, thus forming guiding channel through which the beam self-focuses. Outside these pressure ranges, either diffuse or streamer-like plasma is observed. We also observe high energy electrons (∼15 keV), accelerated by the very high-power microwaves. A simplified analytical model of this complicated dynamical system and particle-in-cell numerical simulations confirm the experimental results.
影响因子：
8.6
作者：
Y. Hidaka;E. Choi;I. Mastovsky;M. Shapiro;J. Sirigiri;R. Temkin
通讯作者：
Y. Hidaka;E. Choi;I. Mastovsky;M. Shapiro;J. Sirigiri;R. Temkin