Observation of impact of eddy current on laser targets in a strong fast rising magnetic field
Observation of impact of eddy current on laser targets in a strong fast rising magnetic field
复制标题
快速上升强磁场中涡流对激光目标影响的观察
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
N. Wong
中科院分区：
文献类型：
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作者：
V. Ivanov;K. Swanson;G. Sarkisov;A. Maximov;P. Wiewior;A. Astanovitskiy;V. Nalajala;O. Chalyy;O. Dmitriev;N. Wong
脉冲发电机能够产生强磁场。在由不同类型的负载产生的强磁场中表征了用于与物质进行高强度相互作用的箔激光靶。线圈负载产生的纵向磁场测量的偏振面的激光束在一个小的玻璃样品在两个波长的法拉第旋转。在1 MA电流下，在不同线圈负载中测量到0.8-1.5 MG的磁场。利用阴影法和干涉法首次观察到dB/dt = 109 T/s的快速上升磁场对铝激光靶产生的涡流效应。Al 10 μm箔靶的材料从两侧以0.1-0.2 mm膨胀。在电介质靶中没有观察到这种效应。涡流对靶的影响是强磁场中激光等离子体相互作用实验设计的重要依据。
Pulsed power generators are capable of producing strong magnetic fields. Foil laser targets for high intensity interactions with matter were characterized in a strong magnetic field produced by different types of loads. Longitudinal magnetic fields generated by coil loads were measured by Faraday rotation of the polarization plane of laser beams in a small glass sample at two wavelengths. Magnetic fields of 0.8–1.5 MG were measured in different coil loads at 1 MA current. For the first time, the impact of eddy current generated by the fast rising magnetic field with dB/dt = 109 T/s was observed in Al laser targets using shadowgraphy and interferometry. Material of the Al 10 μm foil target expanded from both sides at 0.1–0.2 mm. This effect was not observed in dielectric targets. The impact of eddy current on targets is important for designing experiments for laser plasma interactions in strong magnetic fields.
影响因子：
3.3
作者：
Arefiev, A.;Toncian, T.;Fiksel, G.
通讯作者：
Fiksel, G.