Plasma Emission Spectrum Formed during Micropoint Explosion

IF 0.6 4区 物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY
E. V. Oreshkin
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引用次数: 0

Abstract

Explosive emission processes are of great importance in electrodynamic and accelerating structures exposed to high-power radio-frequency electromagnetic waves. These processes emerge due to the explosion of microprotrusions on the surface of electrodes. The paper presents the results of radiation magnetohydrodynamic calculations of the explosion of copper conductors under conditions similar to those that arise during the explosion of microprotrusions. This means that the current density is about 109 A/cm2. Quasi-stationary and radio-frequency explosion regimes are considered. It turns out that in both cases the maximum of the spectral distribution lies in the ultraviolet range. However, the radiation power that comes out of the conductor in the radio frequency regime is almost two orders of magnitude less than that in the quasi-stationary regime.

Abstract Image

微点爆炸过程中形成的等离子体发射光谱
爆炸发射过程对于暴露在高功率射频电磁波下的电动力和加速结构具有重要意义。这些过程是由于电极表面的微突起爆炸而产生的。本文给出了铜导体在类似微突爆炸条件下的辐射磁流体力学计算结果。这意味着电流密度约为109 A/cm2。考虑了准平稳和射频爆炸状态。结果表明,在这两种情况下,光谱分布的最大值都在紫外线范围内。然而,在射频状态下,从导体中发出的辐射功率几乎比准平稳状态下的辐射功率小两个数量级。
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来源期刊
Bulletin of the Lebedev Physics Institute
Bulletin of the Lebedev Physics Institute PHYSICS, MULTIDISCIPLINARY-
CiteScore
0.70
自引率
25.00%
发文量
41
审稿时长
6-12 weeks
期刊介绍: Bulletin of the Lebedev Physics Institute is an international peer reviewed journal that publishes results of new original experimental and theoretical studies on all topics of physics: theoretical physics; atomic and molecular physics; nuclear physics; optics; lasers; condensed matter; physics of solids; biophysics, and others.
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